COLUMBUS, Ohio (WSYX) — The Ohio Department of Health is warning residents about the highly contagious norovirus making its rounds again.

Although norovirus is often confused with food poisoning, it can actually be transmitted through food but is not limited to this mode of transmission.

To prevent the spread of norovirus, the department recommends thorough handwashing with soap and water, as hand sanitizer alone does not work against the virus.

“Wash your hands frequently with soap and water for at least 20 seconds,” the department said in its announcement, emphasizing the importance of this practice after using the toilet, changing diapers, before eating, preparing or handling food, and before administering it of medications.

The department also warns against preparing or handling food and caring for others when sick. It is recommended to wait at least 48 hours after symptoms subside before resuming these activities, especially for people who work in settings such as restaurants, schools, daycares, and long-term care facilities.

Noroviruses can be found in vomit or feces even before symptoms appear and can remain in feces for two weeks or longer after recovery, allowing them to continue to spread during this period.

The department also noted that noroviruses are heat-resistant and can survive temperatures up to 145°F, meaning rapid steaming processes may not be enough to kill the virus. Additionally, foods contaminated with norovirus may appear normal in appearance, smell, and taste, making vigilance in prevention measures critical.

Further information can be found on this website.