Doctors warn bird flu cases rising abnormally this summer stockbot 0 111 2022.07.19 11:00 https://vietnamnews.vn/society/1269645/doctors-warn-bird-flu-cases-ris… + 17 https://vietnamnews.vn/rss/society.rss + 18 Hospitals in Hà Nội have reported an increasing number of people infected with influenza A since early this month, even though the flu is usually more prevalent during the transition between winter and spring.