Changes in Influenza and Other Respiratory Virus Activity During the COVID-19 Pandemic — United States, 2020–2021Sonja J. Olsen, Benjamin J. Silk, Krista Kniss et al.|MMWR Morbidity and Mortality Weekly Report|2021Cited by 611
Decreased Influenza Activity During the COVID-19 Pandemic — United States, Australia, Chile, and South Africa, 2020Sonja J. Olsen, Alicia M. Fry, Eduardo Azziz‐Baumgartner et al.|MMWR Morbidity and Mortality Weekly Report|2020Cited by 591
Decreased influenza activity during the COVID-19 pandemic—United States, Australia, Chile, and South Africa, 2020Sonja J. Olsen, Alicia M. Fry, Eduardo Azziz‐Baumgartner et al.|American Journal of Transplantation|2020Cited by 366