TY - JOUR
T1 - Seroprevalence of SARS-CoV-2 in Client-Owned Cats from Portugal
AU - Oliveira, Andreia
AU - Pereira, Maria Aires
AU - Mateus, Teresa Letra
AU - Mesquita, João R.
AU - Vala, Helena
N1 - Funding Information:
The participation of T.L.M. was supported by the projects UIDB/CVT/00772/2020 and LA/P/0059/2020, funded by the Portuguese Foundation for Science and Technology (FCT). The participation of M.A.P was supported by Global Health and Tropical Medicine (GHTM) under the project UID/04413/2020 and by the Centre for Natural Resources, Environment and Society (CERNAS) through the project UIDB/00681/2020, both founded by FCT, and by the Instituto Politécnico de Viseu (IPV) through the project Biossegurança: um passo firme na melhoria de um futuro incerto. Ref. BiossAPESPCall2. The participation of H.V. was supported by the Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB) through the project UIDB/04033/2020 and by CERNAS through the project UIDB/00681/2020, both funded by FCT, and by IPV through the project Biossegurança: um passo firme na melhoria de um futuro incerto. Ref. BiossAPESPCall2.
Publisher Copyright:
© 2022 by the authors.
PY - 2022/7
Y1 - 2022/7
N2 - The close contact between humans and domestic cats raises concerns about the potential risks of SARS-CoV-2 transmission. Thus, this study aims to investigate anti-SARS-CoV-2 seroprevalence in client-owned cats from Portugal and evaluate the infection risk of cats that maintain contact with human COVID-19 cases. A total of 176 cats, belonging to 94 households, were sampled. Cat owners answered an online questionnaire, and cats were screened for antibodies against SARS-CoV-2 using a commercial ELISA. Twenty (21.3%) households reported at least one confirmed human COVID-19 case. Forty cats (22.7%) belonged to a COVID-19-positive and 136 (77.3%) to a COVID-19-negative household. The seroprevalences of cats from COVID-19-positive and -negative households were 5.0% (2/40) and 0.7% (1/136). The two SARS-CoV-2-seropositive cats from COVID-19-positive households had an indoor lifestyle, and their owners stated that they maintained a close and frequent contact with them, even after being diagnosed with COVID-19, pointing towards human-to-cat transmission. The SARS-CoV-2-seropositive cat from the COVID-19-negative household had a mixed indoor/outdoor lifestyle and chronic diseases. Owners of the three SARS-CoV-2-seropositive cats did not notice clinical signs or behavior changes. This study highlights the low risk of SARS-CoV-2 transmission from COVID-19-positive human household members to domestic cats, even in a context of close and frequent human–animal contact.
AB - The close contact between humans and domestic cats raises concerns about the potential risks of SARS-CoV-2 transmission. Thus, this study aims to investigate anti-SARS-CoV-2 seroprevalence in client-owned cats from Portugal and evaluate the infection risk of cats that maintain contact with human COVID-19 cases. A total of 176 cats, belonging to 94 households, were sampled. Cat owners answered an online questionnaire, and cats were screened for antibodies against SARS-CoV-2 using a commercial ELISA. Twenty (21.3%) households reported at least one confirmed human COVID-19 case. Forty cats (22.7%) belonged to a COVID-19-positive and 136 (77.3%) to a COVID-19-negative household. The seroprevalences of cats from COVID-19-positive and -negative households were 5.0% (2/40) and 0.7% (1/136). The two SARS-CoV-2-seropositive cats from COVID-19-positive households had an indoor lifestyle, and their owners stated that they maintained a close and frequent contact with them, even after being diagnosed with COVID-19, pointing towards human-to-cat transmission. The SARS-CoV-2-seropositive cat from the COVID-19-negative household had a mixed indoor/outdoor lifestyle and chronic diseases. Owners of the three SARS-CoV-2-seropositive cats did not notice clinical signs or behavior changes. This study highlights the low risk of SARS-CoV-2 transmission from COVID-19-positive human household members to domestic cats, even in a context of close and frequent human–animal contact.
KW - anti-SARS-CoV-2 antibodies
KW - COVID-19
KW - household
KW - human–animal interaction
UR - http://www.scopus.com/inward/record.url?scp=85135619818&partnerID=8YFLogxK
U2 - 10.3390/vetsci9070363
DO - 10.3390/vetsci9070363
M3 - Article
C2 - 35878380
AN - SCOPUS:85135619818
SN - 2306-7381
VL - 9
JO - Veterinary Sciences
JF - Veterinary Sciences
IS - 7
M1 - 363
ER -
