Influenza-related burden in China: current situation, challenges and response strategies
Influenza and coronavirus disease 2019 (COVID-19) are both contagious respiratory illnesses.A co-infection of influenza and COVID-19 will prolong the illness, worsen the severity of COVID-19 symptoms and increase fatality, especially for senior citizens, children and people with 15-eg1053cl chronic diseases; the co-infection condition could also br