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A Highly Pathogenic #Avian #H7N9 #Influenza Virus Isolated from A #Human Is Lethal in Some #Ferrets Infected via #Respiratory #Droplets (Cell Host Microbe, abstract)

Title : A Highly Pathogenic #Avian #H7N9 #Influenza Virus Isolated from A #Human Is Lethal in Some #Ferrets Infected via #Respiratory #Drop...

17 Feb 2017

#USA, Finding #Influenza #H7N2 #Infection in #Cats and #Human is concerning (@CDCgov, MMWR, Feb. 17 ‘17)


Title: #USA, Finding #Influenza #H7N2 #Infection in #Cats and #Human is concerning.

Subject: Influenza virus of avian origin, H7N2 subtype, cats’ epizootic with a human case, New York City.

Source: US Centers for Disease Control and Prevention (CDC), MMWR, full page: (LINK). Excerpt.

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Finding Influenza H7N9 Infection in Cats and Human is concerning



Novel Influenza A Viruses

Two human infections with a novel influenza A virus were reported during October 2, 2016–February 4, 2017.


Another patient was infected with an avian lineage influenza A (H7N2) virus and reported close, prolonged unprotected exposure to the respiratory secretions of sick cats known to be infected with this virus at a New York City animal shelter.

Neither patient was hospitalized; both recovered fully, and there was no evidence of human-to-human transmission in either instance.

An unusual outbreak of avian lineage influenza A (H7N2) virus infection among cats in an animal shelter in New York City was first reported to public health officials on December 14, 2016.

Approximately 350 persons with exposure to infected cats during this outbreak were screened or tested for infection and only one human infection with avian influenza A (H7N2) was identified (5).

This is the first influenza A (H7N2) virus infection in humans identified in the United States since 2003 and the first known human infection with an influenza A virus likely acquired through exposure to an ill cat.

The finding of an avian lineage influenza virus in an unexpected host, such as a domestic cat, or any human infection with a nonhuman influenza virus is concerning.

Early identification and investigation of human infections with novel influenza A viruses are critical so that the risk of infection can be more fully understood and appropriate public health measures can be taken.

If clinical laboratories test a respiratory specimen that they cannot type or subtype using commercially available rapid or molecular influenza diagnostic tests, they should contact their state public health laboratory to facilitate transport of specimens for additional testing.

Public health laboratories should immediately send virus specimens that they cannot type or subtype using standard methods to CDC and submit all specimens that are otherwise unusual as soon as possible after identification.



Keywords: US CDC; USA; Updates; H7N2; Avian Influenza; Cats; Human.