If you’re feeling under the weather this holiday season, you’re not alone.
The number of New Yorkers infected with respiratory syncytial virus, or RSV, has jumped since last month, according to the New York City health department. The virus can cause mild, cold-like symptoms, but some people can become seriously ill. Symptoms include a runny nose, sneezing, coughing, chills and a loss of appetite.
Nearly 5,000 cases of RSV were reported to city health authorities in the week ending Dec. 14, health officials said. That number has risen sharply since the beginning of November…