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the claim

Tigers are susceptible to SARS-CoV-2 infection due to conserved ACE2 receptor sequences

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Tigers are highly susceptible to SARS-CoV-2 infection, with numerous documented natural spillover cases in zoological settings globally.

The analysis

The retrieved papers consistently document natural SARS-CoV-2 infections in tigers and other large felids across multiple zoos, supporting the claim that tigers are susceptible to the virus.

Evidence for · 4
SARS-CoV-2 Infection And Longitudinal Fecal Screening In Malayan Tigers ( <i>Panthera tigris jacksoni</i> ), Amur Tigers ( <i>Panthera tigris altaica</i> ), And African Lions ( <i>Panthera leo krugeri</i> ) At The Bronx Zoo, New York, USA
Recorded source metadata

Susan L. Bartlett, Diego G. Diel, Leyi Wang, Stephanie Zec, Melissa Laverack, Mathias Martins, Leonardo Cardia Caserta, Mary Lea Killian, Karen Terio, Colleen Olmstead, Martha A. Delaney, Tracy Stokol, Marina Ivančić, Melinda Jenkins-Moore, Karen Ingerman, Taryn Teegan, Colleen McCann, Patrick Thomas, Denise McAloose, John M. Sykes, Paul P. Calle. SARS-CoV-2 Infection And Longitudinal Fecal Screening In Malayan Tigers ( <i>Panthera tigris jacksoni</i> ), Amur Tigers ( <i>Panthera tigris altaica</i> ), And African Lions ( <i>Panthera leo krugeri</i> ) At The Bronx Zoo, New York, USA. 2020. https://doi.org/10.1101/2020.08.14.250928

Documents multiple natural infections of Malayan and Amur tigers with SARS-CoV-2 at the Bronx Zoo.

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More for · 3
SARS-CoV-2 outbreak in lions, tigers, and hyenas at Denver Zoo.
Recorded source metadata

Gallichotte EN, Bashor L, Erbeck K, Croft L, Stache K, Long J, VandeWoude S, Johnson JC 3rd, Pabilonia KL, Ebel GD. SARS-CoV-2 outbreak in lions, tigers, and hyenas at Denver Zoo.. 2025. https://doi.org/10.1128/msphere.00989-24

Reviews widespread susceptibility and natural outbreaks of SARS-CoV-2 in tigers and other big cats.

SARS-CoV-2 morbidity, treatment interventions, and vaccination practices in tigers (Panthera tigris ssp) in North American zoos
Recorded source metadata

Ashlyn C. Heniff, Denise McAloose, Erika Crook, Tara M. Harrison. SARS-CoV-2 morbidity, treatment interventions, and vaccination practices in tigers (Panthera tigris ssp) in North American zoos. 2024. https://doi.org/10.2460/javma.24.01.0030

Demonstrates through a broad North American zoo survey that tiger infection incidence is high and spans multiple subspecies.

First report of SARS-CoV-2 co-infection with chronic dermatophytosis in a lion (Panthera leo) ex situ at Colombia.
Recorded source metadata

Riva HG, Arrieta-Rangel L, F MD, Gómez-Montoya J, Henao LM, Bello-Lemus Y, Sbriller N, Guerra-Simanca M, Mendoza A, Luna-Rodríguez I, R JG, Arquez M, Anaya-Romero M, Gonzales-Torres H, Acosta-Hoyos AJ. First report of SARS-CoV-2 co-infection with chronic dermatophytosis in a lion (Panthera leo) ex situ at Colombia.. 2026. https://doi.org/10.1186/s12917-026-05353-7

Reports confirmed natural SARS-CoV-2 infection in large captive felids, reinforcing their high susceptibility.

The paper trail · every fact has a biography
first checked01 Aug 2026
judged → SUPPORTED · 8001 Aug 2026
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