Respiratory syncytial virus, or RSV, is a common virus that usually causes mild, cold-like symptoms, but it can be serious, especially for infants and older adults.
In Idaho, Respiratory Syncytial Virus (RSV) season officially began the week ending January 25, 2020 and the season ended the week ending March 14, 2020. The end of the RSV season, or season offset, follows the National Respiratory and Enteric Virus Surveillance System (NREVSS).
Although the number of RSV reports to public health officials have declined sharply, RSV activity usually occurs at a low level in the summer and fall months. We will resume gathering weekly updates beginning in October.