Dogs to bring new deadly virus to humans [Salud] 03/31/2019



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Mexico City.- A new mutation of the influenza A virus can be transmitted from dogs and cats to humans, a study conducted by Dae-sub Song, a professor at the University of Korea, for 10 years, reports Phys.org.

Previously, it had been detected that canines may be hosts of the subtype H3N2, known in this case as "canine influenza virus" (CIV). During the swine flu pandemic, the H1N1 strain also affected dogs. According to Song, the two subtypes can interact, producing a new variation called "CIVmv".

The study revealed that IVCVV host dogs can infect ferrets – which are used as human substitutes in experiments – whose mechanisms of virus protection are similar to those of humans: therefore one can assume that the virus also threatens our species.

The danger is lack of immunity against the new strain, Song explains. Although attempting to develop a vaccine, the task is complicated by the intensity of the CIVmv mutation.

Meanwhile, the high capacity of virus contagion has already been demonstrated. In one case, investigated by the Korean scientist, it was transmitted to cats in a shelter where 100% of the animals were infected and 40% died.

CIVmv may become an endemic virus among animals closest to humans, warns Song. The other threat lies in their ability to evolve. "Pre-existing VSDs can recombine or regroup with human influenza viruses and give rise to new viruses that in turn can lead to unique pandemics," said the researcher.

Full results of the research will be presented at the annual conference of the Society of Microbiology in Belfast (UK) on 10 April.

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