SARS-CoV-2 in domestic cats (Felis catus) in the northwest of Iran: Evidence for SARS-CoV-2 circulating between human and cats
2022
Mohebali, Mehdi | Hassanpour, Gholamreza | Zainali, Mohammad | Gouya, Mohammad Mehdi | Khayatzadeh, Simin | Parsaei, Mehdi | Sarafraz, Nazila | Hassanzadeh, Mehdi | Azarm, Amrollah | Salehi-Vaziri, Mostafa | Sasani, Farhang | Heidari, Zahra | Jalali, Tahmineh | Pouriayevali, Mohammad Hassan | Shoja, Zabihollah | Ahmadi, Zahra | Sadjadi, Marzieh | Tavakoli, Mahsa | Azad-Manjiri, Sanam | Karami, Chiman | Zarei, Zabihollah
This study aimed to investigate the prevalence of COVID-19 in domestic cats, focusing on the disease in the northwest of Iran and then showing the natural transmission of SARS-COV-2 circulating between domestic cats and humans. After receiving ethic codes from Tehran University of Medical Sciences (IR.TUMS.VCR.REC.1399.303) and confirmed by the Center of Communicable Diseases Control (CDC) of Iran, 124 domestic cats were collected from the homes and only one hospital of Meshkin -Shahr district from northwestern Iran where SARS-CoV-2 patients were hospitalized and quarantined during 2020. Samples were prepared from fluid materials of oropharynx and nasopharynx. All samples were tested by real-time PCR (RT-PCR) using specific genes N and ORF1ab in Pasteur Institute of Iran, and then partial sequence analyses of S gene were performed. All collected cats were kept in separated cages until SARS-COV-2 infection was confirmed with the RT-PCR. RT- PCR Ct values of 123 collected cats were ≥40; thus, all of them showed negative results, but one of the collected cats with close contact with its owner, whom confirmed SARS-CoV-2 showed positive results with gene N(Ct=30) and gene ORF1ab (Ct=32). Furthermore, the positive pet cat showed respiratory and gastro-intestinal clinical manifestations, and its owner was infected with SARS-CoV-2 two weeks ago. Cats are susceptible animals to SARS-CoV-2 infection. Epidemiological evidence showed that SARS-COV-2 is able to transmit to healthy cats due to having close contact with its owner as a reverse zoonosis.
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