There has been a dramatic increase in norovirus cases in New York City this winter, compared to other recent years, according to new data. December 2024 saw 1,264 recorded cases of the stomach virus in the five boroughs, a more than 250% increase over the same period in 2023 and 2022, according to the latest figures provided by the city Department of Health and Mental Hygiene. The numbers have been on the rise since at least October, when 446 cases were reported – more than double the levels over the past two years, the figures show.
While case numbers of the virus – which is spread through contact with infected people, contaminated surfaces and foods – typically rise in colder weather, the recent increase is significant and worrying, experts say. The spike could be a reflection of changing behavior in the post-pandemic city – where hand sanitizer has become so ubiquitous that many use it instead of the more effective method of staving off disease with soap and water. People may also be less prone to isolation in the years since the first wave of Covid-19.
Norovirus is incredibly easy to transmit, requiring only a small number of viral particles to spread. Those particles are also very durable, able to cling to surfaces like a kitchen counter, doorknob or handle of a car door for a long time.
Public health officials admit they do not know what is driving the increase. The state Department of Health does not collect data on individual cases but does monitor outbreaks when they are voluntarily reported by counties.
IMPORTANT: While most infections do not result in hospitalization, public health officials recommend the following tips – which also help prevent other types of winter infections, like influenza: Wash your hands with soap and water, regularly disinfect surfaces and stay home if you are sick.
Source: Crain’s New York Business
