On 15 December 2020, the Brazil Ministry of Health reported the second confirmed human infection with influenza A(H1N2) variant virus [A(H1N2)v] in Brazil in 2020. The case was a 4 year-old female who lives on a farm which also functions as a swine slaughter in Irati municipality, Paraná state. On 16 November 2020, the case had illness onset with a fever, cough, coryza, headache and dyspnea, and was provided ambulatory care on the same day at Darcy Vargas Hospital. He was treated with medication for fever and headache and has recovered. No symptomatic contacts were found among the case’s family.
On 18 and 19 November, respiratory samples were collected for testing. The Parana State Laboratory detected an unsubtypeable influenza A virus and the samples were sent to the Oswaldo Cruz Institute (Fiocruz), the National Influenza Centre (NIC) in Rio de Janeiro for complete viral genome sequencing, where influenza A(H1N2)v virus was confirmed on 14 December.