{"id":1872,"date":"2026-10-01T20:50:04","date_gmt":"2026-10-01T20:50:04","guid":{"rendered":"https:\/\/webmediamall.com\/index.php\/2026\/10\/01\/unicorn778-a-first-in-brazil-black-faced-lion-tamarins-vaccinated-peluang-terburuk-saat-bermain-slot-online\/"},"modified":"2026-10-01T20:50:04","modified_gmt":"2026-10-01T20:50:04","slug":"unicorn778-a-first-in-brazil-black-faced-lion-tamarins-vaccinated-peluang-terburuk-saat-bermain-slot-online","status":"publish","type":"post","link":"https:\/\/webmediamall.com\/index.php\/2026\/10\/01\/unicorn778-a-first-in-brazil-black-faced-lion-tamarins-vaccinated-peluang-terburuk-saat-bermain-slot-online\/","title":{"rendered":"UNICORN778 A first in Brazil: Black-faced lion tamarins vaccinated Peluang Terburuk Saat Bermain Slot Online"},"content":{"rendered":"<p><\/p>\n<div id=\"post-331427\">&#13;<\/p>\n<div class=\"bulletpoints-wrapper\">\n<div class=\"bulletpoints\">\n<ul>\n<li><em>In restinga shrub areas of the Atlantic Forest on the coast of Paran\u00e1 state, researchers have carried out the first yellow fever vaccinations of black-faced lion tamarins.<\/em><\/li>\n<li><em>The initiative took place in July 2026 and aims to protect the species, known locally as the \u201ccaissara lion tamarin,\u201d from disease outbreaks that could further reduce its small wild population.<\/em><\/li>\n<li><em>The primate is listed as endangered on the IUCN Red List, with a population estimated at fewer than 400 individuals in the wild and none in captivity, increasing the risk of sudden extinction.<\/em><\/li>\n<\/ul>\n<\/div>\n<p><button class=\"content-expander\"><span>See All Key Ideas<\/span><\/button><\/p>\n<\/div>\n<p>&#13;<\/p>\n<p>On a Wednesday in July, deep in a coastal restinga area of Brazil\u2019s Paran\u00e1 state, muffled footsteps broke through the chirping of manakins. Three field researchers from the conservation NGO Society for Wildlife Research and Environmental Education (SPVS) moved carefully along a trail, each carrying a small cage covered in a dark cloth.<\/p>\n<p>Each cage held a black-faced lion tamarin, known locally as the caissara lion tamarin (<i>Leontopithecus caissara<\/i>). Captured safely from the canopy, the three small primates \u2014 two males and one female \u2014 were carried to a makeshift tent in a forest clearing, where they would make history. Within hours, they would become the first of their species to be vaccinated against yellow fever.<\/p>\n<p>A team of researchers and veterinarians was waiting, quickly transferring each tamarin into a cotton bag to be weighed, starting a race against the clock to protect one of Brazil\u2019s most threatened mammals.<\/p>\n<p><i>L. caissara<\/i> is one of four lion tamarin species endemic to the Atlantic Forest; it ranks among the world\u2019s rarest primates. First found and described by science in 1990, its wild population was estimated at just 392 individuals in a 2011 <a href=\"https:\/\/primate.socgen.ucla.edu\/index.php\/multivitaminic\/article\/view\/723\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">study<\/a>. Most tamarins are confined to coastal restinga areas along the S\u00e3o Paulo-Paran\u00e1 state border.<\/p>\n<figure id=\"attachment_331432\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi.jpg\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-331432\" src=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi.jpg\" alt=\"A Society for Wildlife Research and Environmental Education veterinarian examines a sedated black-faced lion tamarin. Image by Gabriel Marchi.\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi.jpg 1536w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi-768x512.jpg 768w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi-1200x800.jpg 1200w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi-350x233.jpg 350w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135637\/Mico_patas_porGabrielMarchi-610x407.jpg 610w\" sizes=\"(max-width: 1536px) 100vw, 1536px\"\/><\/a><figcaption class=\"wp-caption-text\">A Society for Wildlife Research and Environmental Education veterinarian examines a sedated black-faced lion tamarin. Image by Gabriel Marchi.<\/figcaption><\/figure>\n<p>The species\u2019 already restricted range has also been fragmented for decades. Part of the problems started with the Varadouro Canal, a 6-kilometer (3.7-mile)-long, 50-meter (164-feet)-wide artificial waterway opened in the early 1950s to facilitate interstate trade and cargo shipping. By severing a peninsula from the mainland, the canal created an artificial territory that became Superagui Island.<\/p>\n<p>Connecting the bays of Canan\u00e9ia, in S\u00e3o Paulo, and Paranagu\u00e1 and Pinheiros, in Paran\u00e1, the waterway split the tamarin population in two. Today, isolated groups survive between the <a href=\"https:\/\/guiadeareasprotegidas.sp.gov.br\/ap\/parque-estadual-lagamar-de-cananeia\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">Lagamar de Canan\u00e9ia State Park<\/a> on the S\u00e3o Paulo coast and Superagui National Park on the northern coast of Paran\u00e1.<\/p>\n<p>Experts say this separation cuts off natural gene flow, leaving small subpopulations vulnerable to inbreeding depression \u2014 a drop in survival and reproductive fitness caused by mating among close relatives. Over time, that isolation also undermines the species\u2019 ability to adapt to environmental changes.<\/p>\n<p>There is some controversy over the best name for <i>L. caissara<\/i>, said SPVS veterinarian Paula Mangini, who took part in the unprecedented July 2026 vaccination effort. \u201cBlack-faced lion tamarin\u201d is the most widely used term, mirroring the physical descriptions given to its close relatives, the <a href=\"https:\/\/brasil.mongabay.com\/2026\/06\/mico-leao-dourado-entra-na-mira-de-traficantes-internacionais-de-animais\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">golden lion tamarin<\/a> (<i>Leontopithecus rosalia<\/i>), <a href=\"https:\/\/brasil.mongabay.com\/2026\/05\/bahia-abre-centro-de-reabilitacao-para-salvar-o-raro-mico-leao-de-cara-dourada\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">golden-headed lion tamarin<\/a> (<i>Leontopithecus chrysomelas<\/i>), and <a href=\"https:\/\/brasil.mongabay.com\/2020\/06\/os-corredores-florestais-que-estao-salvando-o-mico-leao-preto\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">black lion tamarin<\/a> (<i>Leontopithecus chrysopygus<\/i>). Yet popular culture and several researchers favor the term \u201ccaissara lion tamarin\u201d to forge an explicit link between the primate and its habitat.<\/p>\n<p>The name <i>caissara <\/i>comes from \u201c<i>cai\u00e7ara<\/i>,\u201d an Indigenous term used to describe the traditional coastal communities of southern and southeastern Brazil, whose livelihoods and culture are closely tied to the sea and Atlantic Forest.<\/p>\n<p>\u201cIt\u2019s the same thing with the golden-headed lion tamarin, which is often called Bahian lion tamarin,\u201d [a reference to Bahia state], Mangini told Mongabay. \u201cI\u2019m in favor of identifying it with the area; I think it helps with conservation as you make the population identify with the animal. I vote for \u2018caissara lion tamarin.\u2019 And it\u2019s in the scientific name, right? It is <i>Leontopithecus caissara<\/i>.\u201d<\/p>\n<figure id=\"attachment_331433\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4.jpg\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-331433\" src=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4.jpg\" alt=\"A black-faced lion tamarin, also known as the caissara lion tamarin. Image by Gabriel Marchi.\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4.jpg 1536w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4-768x512.jpg 768w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4-1200x800.jpg 1200w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4-350x233.jpg 350w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135722\/Mico-caicara_PorGabrielMarchi_4-610x407.jpg 610w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\"\/><\/a><figcaption class=\"wp-caption-text\">A black-faced lion tamarin, also known as the caissara lion tamarin. Image by Gabriel Marchi.<\/figcaption><\/figure>\n<p>The primate <a href=\"https:\/\/www.iucnredlist.org\/species\/11503\/206547044\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">is listed<\/a> as endangered on the International Union for Conservation of Nature (IUCN) Red List. Still based on the 2011 study, the IUCN estimates the number of adult individuals at around 250.<\/p>\n<p>Unlike other lion tamarins, Mangini noted that <i>L. caissara<\/i> has no insurance population in a controlled environment, whether in primatology centers or zoos. If disease strikes its small wild population, the species could be suddenly wiped out with no captive individuals to be included in repopulation projects.<\/p>\n<p><a href=\"https:\/\/brasil.mongabay.com\/2020\/05\/a-proxima-grande-ameaca-ao-mico-leao-dourado-febre-amarela\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">Yellow fever<\/a> poses one of the most serious threats to Brazil\u2019s primates as Mongabay reported in a recent <a href=\"https:\/\/brasil.mongabay.com\/2026\/09\/estudo-mapeia-areas-prioritarias-para-vacinar-micos-leoes-dourados\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">story<\/a>. And while the lack of continuous monitoring of the black-faced species on Superagui Island \u2014 home to <a href=\"https:\/\/www.gov.br\/icmbio\/pt-br\/assuntos\/unidade-de-conservacao\/unidades-de-biomas\/marinho\/lista-de-ucs\/parna-do-superagui\/informacoes-sobre-visitacao-2013-parna-do-superagui\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">Superagui National Park<\/a>, the site of the initial vaccinations \u2014 has prevented researchers from finding evidence of black-faced lion tamarins that died during recent disease outbreaks, science points to several risks.<\/p>\n<p>\u201cWe know that yellow fever has passed through Superagui Island [in recent years] because howler monkeys vanished. Howler monkeys are extremely <a href=\"https:\/\/brasil.mongabay.com\/2024\/07\/um-programa-pioneiro-e-uma-vacina-para-devolver-os-bugios-a-mata-atlantica\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">sensitive to yellow fever<\/a>, with huge casualties [numbers of confirmed fatal cases],\u201d Mangini said.<\/p>\n<h2><b>Vaccination aims to conserve the species<\/b><\/h2>\n<p>She explains that this is how the idea of vaccinating black-faced lion tamarins emerged as part of a mission to provide the animals with a line of biological defense. According to Mangini, in addition to being the rarest of lion tamarins, <i>L. caissara<\/i> is also the least studied.<\/p>\n<p>After researchers Vanessa Persson and Maria L\u00facia Lorini formally described the species in 1990, confirming rumors of a dark-faced lion tamarin in Superagui\u2019s coastal forests, initial studies examined its diet, behavior and health. Fieldwork for population sampling began in the early 2000s.<\/p>\n<p>But then monitoring stalled, experts say. While working to recover the <a href=\"https:\/\/brasil.mongabay.com\/2025\/04\/de-volta-aos-ceus-o-improvavel-retorno-de-um-dos-mais-raros-papagaios-do-brasil\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">red-tailed amazon (<i>Amazona brasiliensis<\/i>)<\/a> in the same state border area in the 2010s, SPVS researchers realized that no one was actively studying or protecting the rare mammal.<\/p>\n<p>In 2018, SPVS stepped in to coordinate the black-faced lion tamarin conservation program. The plan combined scientific research and population monitoring with habitat protection, conservation unit management, and community environmental education. Its priority was to reduce the risks of future epidemics.<\/p>\n<p>From 2021 to 2023, SPVS led a series of multi-institutional workshops involving researchers from the Chico Mendes Institute for Biodiversity Conservation (ICMBio), the Oswaldo Cruz Foundation (Fiocruz), and the Immunobiological Institute of Technology (Bio-Manguinhos) to assess the health threats facing the species.<\/p>\n<figure id=\"attachment_331434\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi.jpg\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-331434\" src=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi.jpg\" alt=\"An SPVS researcher handles an L. caissara individual while collecting pre-vaccination samples. Image by Gabriel Marchi.\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi.jpg 1536w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi-768x512.jpg 768w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi-1200x800.jpg 1200w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi-350x233.jpg 350w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135808\/Tise-e-o-Mico_porGabrielMarchi-610x407.jpg 610w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\"\/><\/a><figcaption class=\"wp-caption-text\">An SPVS researcher handles an L. caissara individual while collecting pre-vaccination samples. Image by Gabriel Marchi.<\/figcaption><\/figure>\n<p>The assessment discussions led to a technical agreement between researchers and conservation organizations: Under <a href=\"https:\/\/spvs.org.br\/releases\/spvs-e-parceiros-realizam-oficina-de-planejamento-integrado-para-a-conservacao-do-mico-leao-da-cara-preta\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">guidelines set<\/a> at an SPVS planning meeting in April 2025, every black-faced lion tamarin captured during field research must receive yellow fever vaccine. That protocol paved the way for Mangini and her team to vaccinate the three tamarins in July 2026.<\/p>\n<p>\u201cThere is a lot of uncertainty about this species. But if the [scientific] community can make sure that [the animal] is vaccinated against yellow fever, the risk to its survival decreases,\u201d Mangini said.<\/p>\n<p>The vaccination day was a blend of stress, quick hospital procedures and strong emotion. As soon as the three tamarins arrived at the field clinic, Mangini said, the team found itself racing against \u201ctwo clocks.\u201d<\/p>\n<p>The first countdown was the anesthesia, which kept the animals asleep for up to 50 minutes. During that brief window, the team had to collect blood, hair, and fecal samples, take body measurements, insert microchips, attach radio-tracking collars, and then administer the vaccines.<\/p>\n<p>In addition to the narrow window for carrying out all the procedures on each animal, the yellow fever vaccine itself also faced a countdown.<\/p>\n<p>Adapted from human yellow fever vaccines and produced by Bio-Manguinhos, the immunizer remains effective for only three hours once it is diluted. All three tamarins had to be injected within that interval.<\/p>\n<figure id=\"attachment_331436\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135858\/Base-cientifica_Superagui_porGabrielMarchi.jpg\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-331436\" src=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135858\/Base-cientifica_Superagui_porGabrielMarchi.jpg\" alt=\"The SPVS vaccination project\u2019s field station set up in an Atlantic Forest restinga area on Superagui Island, Paran\u00e1. Image by Gabriel Marchi.\" width=\"1536\" height=\"866\" srcset=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135858\/Base-cientifica_Superagui_porGabrielMarchi.jpg 1536w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135858\/Base-cientifica_Superagui_porGabrielMarchi-768x433.jpg 768w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135858\/Base-cientifica_Superagui_porGabrielMarchi-1200x677.jpg 1200w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135858\/Base-cientifica_Superagui_porGabrielMarchi-610x344.jpg 610w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\"\/><\/a><figcaption class=\"wp-caption-text\">The SPVS vaccination project\u2019s field station set up in an Atlantic Forest restinga area on Superagui Island, Paran\u00e1. Image by Gabriel Marchi.<\/figcaption><\/figure>\n<p>The most stressful step was fitting the radio collars needed to track the vaccinated group. Made from flexible, silicone-coated steel wire, collars must be assembled on the spot to match each animal\u2019s neck.<\/p>\n<p>\u201cIt seems easy when we talk about it, but when you have to actually do it, it\u2019s not. The cable doesn\u2019t go through, it comes back; then the other wire comes back \u2026,\u201d Mangini said. Placing the collars took so long that the first two tamarins had to be given extra anesthetic to keep them under while the team finished.<\/p>\n<p>Since they received their doses, the three vaccinated tamarins have been monitored daily through radio collars and camera traps, showing no side effects.<\/p>\n<figure id=\"attachment_331437\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi.jpg\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-331437\" src=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi.jpg\" alt=\"A researcher carries a black-faced lion tamarin in a cage shortly after its capture for research and vaccination. Image by Gabriel Marchi.\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi.jpg 1536w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi-768x512.jpg 768w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi-1200x800.jpg 1200w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi-350x233.jpg 350w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01135939\/Roberta_FUNBIO_porGabrielMarchi-610x407.jpg 610w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\"\/><\/a><figcaption class=\"wp-caption-text\">A researcher carries a black-faced lion tamarin in a cage shortly after its capture for research and vaccination. Image by Gabriel Marchi.<\/figcaption><\/figure>\n<h2><b>Researchers bank on environmental awareness<\/b><\/h2>\n<p>In late August, researchers met with local residents to present the results of the vaccination project and answer questions.<\/p>\n<p>SPVS biologist Adrianne Pires leads the project\u2019s community outreach work in Superagui, in Guaraque\u00e7aba municipality. Born and raised on the island, Pires runs workshops, talks and educational activities with schools and community members, working to foster local pride in the black-faced lion tamarin as a shared symbol of identity, memory and cultural heritage.<\/p>\n<p>Pires said residents have come to realize that \u201cconservation and development can indeed go hand in hand, as long as there is dialogue with the community and respect for the territory.\u201d<\/p>\n<p>\u201cThe idea is to seek development in a way that values local culture, people and nature. Being from the territory, I see that conserving does not mean preventing development but rather finding ways to develop without losing what makes this place so special,\u201d she said.<\/p>\n<p>Elenise Sipinski is technical coordinator of the black-faced lion tamarin conservation program. She argues that safeguarding the wild population could also turn the primate into an asset for Superagui Island, drawing wildlife watchers, scientists and tourists interested in <a href=\"https:\/\/brasil.mongabay.com\/2024\/01\/como-o-ecoturismo-pode-tornar-a-mata-atlantica-referencia-em-sustentabilidade\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">sustainable activities<\/a>.<\/p>\n<p>\u201cThe tamarin will only be there if this area remains well preserved and residents keep this caring perspective. In return, this ecological asset can enhance tourism as well as the boat, inn and craft services that are typical of the region,\u201d she said.<\/p>\n<figure id=\"attachment_331438\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi.jpg\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-331438\" src=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi.jpg\" alt=\"The SPVS field team in charge of vaccinating tamarins. Image by Gabriel Marchi.\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi.jpg 1536w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi-768x512.jpg 768w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi-1200x800.jpg 1200w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi-350x233.jpg 350w, https:\/\/imgs.mongabay.com\/wp-content\/uploads\/sites\/20\/2026\/10\/01140013\/Equipe_vacinacao_porGabrielMarchi-610x407.jpg 610w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\"\/><\/a><figcaption class=\"wp-caption-text\">The SPVS field team in charge of vaccinating tamarins. Image by Gabriel Marchi.<\/figcaption><\/figure>\n<p>The next step involved recapturing the vaccinated tamarins to collect blood samples and verify whether the vaccine was effective. The team is still awaiting laboratory results, but they told Mongabay that the recapture and subsequent release went off without a hitch.<\/p>\n<p>Pending those results, Sipinski said, they plan to expand vaccination to additional groups of tamarins on Superagui and across the state line, on the S\u00e3o Paulo coast.<\/p>\n<p>Over the long-term, researchers hope to establish a captive insurance population similar to those already maintained for other lion tamarin species. In the meantime, Sipinski said, the vaccination drive is providing vital biological data that will help biologists design safe control strategies.<\/p>\n<p>\u201cIt\u2019s a very sensitive process, and we have to work with the community so that they know we are not removing animals from the wild to put them in a zoo. We must identify which individuals are suitable so that each one is placed in the ideal spot. We have to bring nature to the place that feels as close as possible to its environment,\u201d Sipinski said.<\/p>\n<p>Recalling the moment the animals were returned to the wild, Mangini grew emotional. One field work scene stayed with her: As the tamarins shook off the last effects of the sedative, they grabbed branches and went right back into the forest.<\/p>\n<p>Inside the tent, no one could hold back tears.<\/p>\n<p>\u201cIt gives us more hope. We know that [vaccinating only] three animals means nothing for [the entire population of] a species. But it\u2019s the first step.\u201d<\/p>\n<p><b><i>Banner image:<\/i><\/b><i> A black-faced lion tamarin photographed during the yellow fever vaccination project conducted by SPVS. Image by Gabriel Marchi.<\/i><\/p>\n<p><i>This story was reported by Mongabay\u2019s Brasil team and first published <\/i><a href=\"https:\/\/brasil.mongabay.com\/2026\/09\/no-parana-projeto-realiza-vacinacao-inedita-do-mico-leao-caicara\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\"><i>here<\/i><\/a><i> on Sept. 17, 2026.\u00a0<\/i><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"bTLHbZ08Rq\">\n<p><a href=\"https:\/\/news.mongabay.com\/2026\/07\/researchers-find-priority-zones-for-yellow-fever-vaccination-of-golden-lion-tamarins\/\" data-wpel-link=\"internal\">Researchers find \u2018priority zones\u2019 for yellow fever vaccination of golden lion tamarins<\/a><\/p>\n<\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cResearchers find \u2018priority zones\u2019 for yellow fever vaccination of golden lion tamarins\u201d \u2014 Conservation news\" src=\"https:\/\/news.mongabay.com\/2026\/07\/researchers-find-priority-zones-for-yellow-fever-vaccination-of-golden-lion-tamarins\/embed\/#?secret=jbKtzO34OS#?secret=bTLHbZ08Rq\" data-secret=\"bTLHbZ08Rq\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p><b>Citation:<\/b><\/p>\n<p>Nascimento, A. T. A., Prado, F., Valladares-Padua, C. B., \u2026 J\u00fanior, P. M. (2011). Population density of black-faced lion tamarin (<i>Leontopithecus caissara<\/i>). <i>Neotropical Primates<\/i>, <i>18<\/i>(1), 17\u201321. doi:<a href=\"https:\/\/primate.socgen.ucla.edu\/index.php\/multivitaminic\/article\/view\/723\" data-wpel-link=\"external\" target=\"_blank\" rel=\"external\">10.1896\/044.018.0103<\/a><\/p>\n<p>                            &#13;<br \/>\n                            <span class=\"article-comments\"><a href=\"\" data-wpel-link=\"internal\"\/><\/span>&#13;<br \/>\n&#13;<br \/>\n                            &#13;<br \/>\n        &#13;\n                        <\/div>\n","protected":false},"excerpt":{"rendered":"<p>&#13; In restinga shrub areas of the Atlantic Forest on the coast of Paran\u00e1 state,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[12,4147,529,687,14,9,11,13,688,10,2,4148],"class_list":["post-1872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-unicorn778","tag-bermain","tag-blackfaced","tag-brazil","tag-lion","tag-online","tag-peluang","tag-saat","tag-slot","tag-tamarins","tag-terburuk","tag-unicorn778","tag-vaccinated"],"_links":{"self":[{"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/posts\/1872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/comments?post=1872"}],"version-history":[{"count":0,"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/posts\/1872\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/media\/1873"}],"wp:attachment":[{"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/media?parent=1872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/categories?post=1872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webmediamall.com\/index.php\/wp-json\/wp\/v2\/tags?post=1872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}