29/08/2021
COVID19 QUESTION
1. What’s more important for preventing infection?
A. Frequent hand washing
B. Wearing a mask
Answer:
A.. Frequent hand washing
A mask should only be worn by health workers, caregivers and individuals with respiratory symptoms such as a fever or cough, according to health authorities. There’s no conclusive evidence masks protect ordinary, healthy people going about their daily business (although a few small studies have suggested that widespread use of face masks by the public may have reduced transmission in outbreaks of other respiratory diseases). With masks in short supply, the argument is that everyone is better off if they are reserved for those who can’t avoid exposure to people who are infected or might be.
Because viruses like this one are most efficiently spread via hands, frequent and thorough hand-washing and drying is the best way to minimize the risk of infection. The use of alcohol-based sanitizer is “a good second best,” according to David Powell, a physician and medical adviser to the International Air Transport Association. Other useful measures include avoiding touching your face, coughing or sneezing into the crook of your elbow and disposing of any used tissues carefully.