COVID-19 or RSV? Symptoms to watch for

An unusual summertime uptick in respiratory syncytial viral infections, or RSV, coinciding with increasing spread of the delta variant, may create difficulty in differentiating between the two.

The respiratory viruses share several common symptoms, and reports of both RSV and COVID-19 cases are on the rise; RSV had an approximate 3% positivity rate in June before rising to 13% by mid-July, according to the latest federal figures, which may represent an undercount due to lags in reporting. Meanwhile, the U.S. just logged 103,455 new daily COVID-19 infections with a seven-day average of about 89,463 cases per day, translating to a 43% increase over the prior seven-day average, according to Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention (CDC). SARS-CoV-2, or the virus causing COVID-19 disease, is a respiratory virus associated with a range of symptoms, and it takes a couple of weeks for an infected individual to fully recover. Although most people do recover from COVID-19, some who were infected experience lingering symptoms, or so-called long COVID, while others (like people who are elderly, overweight or with previous underlying health conditions) may suffer a severe course of disease. Symptoms associated with COVID-19 include: