Interspecies transmission of equine influenza virus (H3N8) to dogs by close contact with experimentally infected horses

Yamanaka, Takashi; Nemoto, Manabu; Tsujimura, Koji; Kondo, Takashi; Matsumura, Tomio

doi:10.1016/j.vetmic.2009.06.015

Cited by 57 publications

(48 citation statements)

References 23 publications

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“…In this case, the difference (p < 0.05) among mean titers for human influenza A subtypes H 1 N 1 and H 3 N 2 was statistically significant. Healthy dogs, kept in close contact with equine influenza virus (EIV)-infected horses, were reported as developing antibodies against the virus, which suggests that interspecies transmission of EIV to dogs could have occurred as result of contact between these animal species 19 .…”

Section: Resultsmentioning

confidence: 99%

Influenza viruses in adult dogs raised in rural and urban areas in the state of São Paulo, Brazil

Mancini

Mendonça

Pereira

et al. 2012

Rev. Inst. Med. trop. S. Paulo

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In 1970, searching for the interspecies transmission of influenza viruses led to the first study on influenza viruses in domestic animals. Birds and mammals, including human beings, are their natural hosts; however, other animals may also play a role in the virus epidemiology. The objective was to investigate the incidence of influenza viruses in adult dogs raised in rural (9, 19.56%) and urban (37, 80.43%) areas in the state of São Paulo, Brazil. Dog serum samples were examined for antibodies to influenza viruses by the hemagglutination inhibition (HI) test using the corresponding antigens from the circulating viruses in Brazil. Dogs from rural areas presented antibodies to influenza A H3N2, and influenza A H7N7 and H3N8. In rural areas, dog sera displayed mean titers as 94.37, 227.88, 168.14, 189.62 HIU/25 µL for subtypes H1N1, H3N2, H7N7, H3N8, respectively. About 84% and 92% of dogs from urban areas exhibited antibodies to human influenza A H1N1 and H3N2, respectively, with statistical difference at p < 0.05 between the mean titers of antibodies to H1N1 and H3N2. About 92% and 100% were positive for H7N7 and H3N8, respectively. In dogs from urban areas, the mean titers of antibodies against influenza A H1N1, H3N2, H7N7 and H3N8, were 213.96, 179.42, 231.76, 231.35 HIU/25 µL respectively. The difference among them was not statistically significant at p > 0.05. In conclusion, these dogs were positive for both human and equine influenza viruses. The present study suggests the first evidence that influenza viruses circulate among dogs in Brazil.

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Section: Resultsmentioning

confidence: 99%

Influenza viruses in adult dogs raised in rural and urban areas in the state of São Paulo, Brazil

Mancini

Mendonça

Pereira

et al. 2012

Rev. Inst. Med. trop. S. Paulo

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show abstract

“…Indeed, in our aforementioned study (22), there was no amino acid substitution in HA between the isolates from dogs housed with experimentally EIV infected horses and the parent EIV (IBK07).…”

Section: E General Discussionmentioning

confidence: 67%

“…Anecdotal evidence points to both the usual (aerosol) route, and the consumption of the respiratory tissue of an infected horse. Therefore, we tested whether or not the interspecies transmission of EIV to dogs could occur as a result of close contact with EIV-infected horses (22). Three pairs consisting of an EIV-infected horse (IBK07, 10 8.3 egg infectious dose 50/head) and a healthy dog were kept together in individual stalls for 15 days.…”

Section: Infectivity and Pathogenicity Of Eiv And CIV In Horsesmentioning

confidence: 99%

Current Knowledge of Interspecies Transmission of H3N8 Influenza A Virus between Horses and Dogs

Yamanaka

2011

TIGG

Self Cite

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“…The haemagglutinin of this subtype was found to differ from contemporary equine viruses by 5 conserved amino acid substitutions (Payungporn et al, 2008). However, the virus shed from dogs in close contact with an experimentally Equine Influenza H3N8 infected horse had no substitution of amino acids in their haemagglutinin (Yamanaka et al, 2009). Also, these experimental dogs present no clinical signs though the haemagglutination inhibition (HI) test carried out showed that all the dogs exhibited seroconversion.…”

Section: Equine-origin Canine Influenza Virus H3n8mentioning

confidence: 93%

A Review: Canine and Feline Influenza

Babatunde¹,

Oladimeji²

2018

AJVS

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Interspecies transmission of equine influenza virus (H3N8) to dogs by close contact with experimentally infected horses

Cited by 57 publications

References 23 publications

Influenza viruses in adult dogs raised in rural and urban areas in the state of São Paulo, Brazil

Influenza viruses in adult dogs raised in rural and urban areas in the state of São Paulo, Brazil

Current Knowledge of Interspecies Transmission of H3N8 Influenza A Virus between Horses and Dogs

A Review: Canine and Feline Influenza

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