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Susceptible Animal Species and Animal Models for Coronavirus Research

For a given disease, such as COVID-19, researchers strive to develop animal models that mimic the human course of the disease. Animal models of human disease should have a route of infection, severity of disease, and morbidity and mortality levels that are similar to the human course of the disease.

Animals that are susceptible to or have been used as animal models to study SARS-CoV-2 include cat, ferret, fruit bat, hACE2 mouse, hamster, nonhuman primate, and tree shrew. Figure 1 illustrates the host range of SARS-CoV-2 and the animals susceptible to SARS-CoV-2 infection. Table 1 provides information and references on these animals.

Animal models that are susceptible to or have been used as animal models to study other coronaviruses include chicken, dog, duck, hACE2 mouse, hDPP4 mouse, lung-only mouse, and pig. Table 2 below provides information and references on these animals.

Host range of SARS-CoV-2 and animals susceptible to SARS-CoV-2.

Figure 1. Host range of SARS-CoV-2 and animals susceptible to SARS-CoV-2. (From: Hossain MG, Javed A, Akter S, et al. SARS-CoV-2 host diversity: An update of natural infections and experimental evidence. J Microbiol Immunol Infect 2020;S1684-1182(20)30147-X. doi:10.1016/j.jmii.2020.06.006.)

Table 1. Animal species susceptible to SARS-CoV-2 infection
 
Animal Mode of Transmission Select References
cat respiratory tract, rectal swab, airborne
ferret respiratory tract, rectal swab, contact, airborne
fruit bat respiratory tract, contact
hACE2 mouse respiratory tract, fecal swab
hamster respiratory tract, rectal swab, contact
nonhuman primate respiratory tract, contact, airborne
tree shrew respiratory tract, fecal swab
Table 2. Animal species susceptible to other coronaviruses
Animal Coronavirus Select References
chicken infectious bronchitis virus (IBV)
dog SARS-CoV, canine coronavirus (CCoV)
duck novel duck coronavirus
hACE2 mouse SARS-CoV
hDPP4 mouse MERS-CoV
lung-only mouse MERS-CoV
pig porcine deltacoronavirus (PDCoV), porcine epidemic diarrhea virus (PEDV), transmissible gastroenteritis virus (TGEV)

Select References—Animal Models for Coronavirus Research