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Literature detail

No detection of SARS-CoV-2 in animals exposed to infected keepers: results of a COVID-19 surveillance program.

Pellegrino Cerino1 Carlo Buonerba1 Gianfranco Brambilla2 Luigi Atripaldi3 Maria Tafuro1 Denise Di Concilio1 Lucia Vassallo1 Gabriella Lo Conte1 Maria Concetta Cuomo1 Ivana Maiello1 Jacopo D'Auria1 Davide Cardinale1 Maurizio Viscardi1 Giuseppe Rofrano1 Alfonso Gallo1 Pasquale Brusco1 Antonio Pizzolante1 Vittorio Cicalese1 Pio Galdi1 Lydia Galdi1 Sabato De Vita1 Palmiero Volzone1 Gabriele Di Vuolo1 Annachiara Coppola1,4 Biancamaria Pierri1,5 Giovanna Fusco1
Affiliations 5 institutions
  1. Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, 80055, Italy.
  2. Istituto Superiore di Sanita, Food Safety, Nutrition, & Veterinary Public Health Department, Rome, 00161, Italy.
  3. Cotugno Hospital, AORN Ospedali dei Colli, Naples, 80131, Italy.
  4. Dipartimento di Medicina Sperimentale, Universita' degli studi della Campania 'L. Vanvitelli', Naples, 80138, Italy.
  5. Department of Medicine, Surgery & Dentistry (Scuola Medica Salernitana), University of Salerno, Baronissi, 84081, Italy.
PMID 34254029 2021 Future Sci OA eng epublish
PubMed DOI Browse context

Article

Publication summary

SARS-CoV-2, the causative agent of the COVID-19 pandemic, has rarely been associated with transmission from humans to animals (reverse zoonotic transmission). In this retrospective study, the authors reviewed data obtained from 236 animals, including buffaloes, goats/sheep, horses, carrier pigeons, rabbits, hens, snakes, pigs and cows that were screened for SARS-CoV-2 infection because they had been in contact with their SARS-CoV-2-positive breeder for at least 2 weeks. None of the tested animals were found to be positive. The authors' findings suggest that the risk of reverse zoonotic transmission among bred animals and SARS-CoV-2-positive breeders is very low or nonexistent. Additional studies are warranted.

COVID-19 human-to-animal transmission interspecies transmission reverse zoonotic transmission SARS-CoV-2

Structured evidence records

Evidence records

2 total
Spillover Event 1 records
Spillover Event Extraction confidence 0.90
Key finding

Despite exposure to infected keepers, no SARS-CoV-2 infection was detected in the tested animals, indicating no evidence of human-to-animal spillover in this study.

Virus
SARS-CoV-2
Location
Not specified
Supporting text

Animals including buffaloes, goats/sheep, horses, carrier pigeons, rabbits, hens, snakes, pigs and cows that had been in contact with their SARS-CoV-2-positive breeder for at least 2 weeks were screened for infection; none were found to be positive.

Method
screening
Study design
surveillance study
Transmission direction
human-to-animal
Zoonotic Surveillance 1 records
Zoonotic Surveillance Extraction confidence 0.95
Key finding

Domestic and farmed animals exposed to SARS-CoV-2-positive breeders were monitored for infection but none tested positive.

Virus
SARS-CoV-2
Host
Metazoa
Location
Not specified
Supporting text

In this retrospective study, the authors reviewed data obtained from 236 animals, including buffaloes, goats/sheep, horses, carrier pigeons, rabbits, hens, snakes, pigs and cows that were screened for SARS-CoV-2 infection because they had been in contact with their SARS-CoV-2-positive breeder for at least 2 weeks. None of the tested animals were found to be positive.

Method
surveillance program; screening