Not Wearing Masks to Protect against Coronavirus Is a ‘Big Mistake,’ Top Chinese Scientist Says

Chinese scientists at the front of that country’s outbreak of coronavirus disease 2019 (COVID-19) have not been particularly accessible to foreign media. Many have been overwhelmed trying to understand their epidemic and combat it, and responding to media requests, especially from journalists outside of China, has not been a top priority.

Science has tried to interview George Gao, director-general of the Chinese Center for Disease Control and Prevention (CDC), for 2 months. Last week he responded.

Gao oversees 2000 employees—one-fifth the staff size of the U.S. Centers for Disease Control and Prevention—and he remains an active researcher himself. In January, he was part of a team that did the first isolation and sequencing of severe acute respiratory syndrome 2 (SARS-CoV-2), the virus that causes COVID-19. He co-authored two widely read papers published in The New England Journal of Medicine (NEJM) that provided some of the first detailed epidemiology and clinical features of the disease, and has published three more papers on COVID-19 in The Lancet.

His team also provided important data to a joint commission between Chinese researchers and a team of international scientists, organized by the World Health Organization (WHO), that wrote a landmark report after touring the country to understand the response to the epidemic. Read More

Many people have the wrong idea about wearing a face mask. It is a public health measure. It will prevent them from spreading the virus through coughing and sneezing. It is far more effective than coughing or sneezing into your elbow or into tissue. Even if they are asymptomatic and do not feel ill, they should wear a mask. They still may be a carrier.