A child in Hawaii has been diagnosed with H3N2 variant swine flu. The patient was not hospitalised and have already recovered. This person does not appear to have had contact with pigs though investigations are ongoing. Swine flu viruses do not usually infect humans. When they do, they are called "variant" viruses. The United States reports sporadic cases of swine flu in humans most summers, usually related to agricultural fairs. These fairs have not operated as usual this year due to the COVID-19 pandemic. This is the first case of H3N2v influenza in the US since 2018. The CDC notes, "The vast majority of human infections with variant influenza viruses do not result in person-to-person spread." The public health risk of human infections of animal flu variants remains the same. Further human cases can be expected, due to human contact with infected animals or their environments.