By NewsDesk  @bactiman63

The Centers for Disease Control and Prevention (CDC) report the first A(H1N1)v virus infection in the US for 2019 in Michigan.


The patient, an adult > 65 years of age, was infected with an influenza A(H1N1) variant (A(H1N1)v) virus.

The patient was hospitalized, and completely recovered from their illness. While no exposure to swine has been reported, an investigation is ongoing into the source of the patient’s infection.

Swine flu viruses do not normally infect humans. However, sporadic human infections with influenza viruses that normally circulate in swine and not people have occurred. When this happens, these viruses are called “variant viruses.”

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They also can be denoted by adding the letter “v” to the end of the virus subtype designation. Human infections with H1N1v, H3N2v and H1N2v viruses have been detected in the United States.

Since 2010, 465 A(H1N1)v virus infections have been reported in the US, with more than 300 reported in the 2011-2012 season alone.