Impact of Wearing Masks, Hand Hygiene, and Social Distancing on Influenza, Enterovirus, and All-Cause Pneumonia During the Coronavirus Pandemic: Retrospective National Epidemiological Surveillance Study

Nan-Chang Chiu   ^{1, 2 *} , MD ;   Hsin Chi   ^{1, 2 *} , MD ;   Yu-Lin Tai   ³ , MD ;   Chun-Chih Peng   ^{1, 2} , MD ;   Cheng-Yin Tseng   ³ , MD ;   Chung-Chu Chen   ^{3, 4} , MD ;   Boon Fatt Tan   ⁵ , MD ;   Chien-Yu Lin   ^{2, 3} , MD

¹ MacKay Children's Hospital, Taipei, Taiwan

² Department of Medicine, MacKay Medical College, New Taipei, Taiwan

³ Hsinchu MacKay Memorial Hospital, Hsinchu, Taiwan

⁴ Teaching Center of Natural Science, Minghsin University of Science and Technology, Hsinchu, Taiwan

⁵ National Taiwan University, Hsinchu Branch, Hsinchu, Taiwan

*these authors contributed equally