Are antibiotics effective in preventing or treating COVID-19?
No. Antibiotics do not work against viruses; they only work on bacterial infections. Antibiotics do not prevent or treat coronavirus disease (COVID-19), because COVID-19 is caused by a virus, not bacteria. Some patients with COVID-19 may also develop a bacterial infection, such as pneumonia. In that case, a health care professional may treat the bacterial infection with an antibiotic.
See also: Treatments, vaccines, and immunity