Nationwide Norovirus Outbreak Spreads Earlier This Year as Holiday Season Approaches
As the holiday season fast approaches, Americans are facing an unexpected challenge: a rapidly spreading outbreak of norovirus. According to wastewater data, the highly contagious virus has been on the rise since mid-October, with a 69% increase in nationwide concentrations as of November 21.
Norovirus, commonly known as the "winter vomiting disease," is a human-only illness that causes severe diarrhea and vomiting. The Centers for Disease Control and Prevention (CDC) reports that between August and November last year, there were 235 reported outbreaks, with no corresponding drop-off in this year's data. This season has seen a staggering 153 outbreaks over the same period.
Experts attribute the early outbreak to a new variant of norovirus, GII.17. While it may not be more contagious than its predecessor, GII.4, which dominated the disease for decades, some researchers believe that the increased prevalence of immunity among the population could be contributing to the faster spread.
"This is one of the big questions in our scientific community," Dr. Robert Atmar, a professor at Baylor College of Medicine, noted. "Whether it's going to persist this year or not." Norovirus outbreaks typically peak between November and April but have been happening earlier than usual this season.
So, how can you protect yourself from norovirus? While there is no vaccine available yet, the CDC recommends washing your hands with soap thoroughly, cleaning infected areas with diluted bleach, and cooking oysters and shellfish properly. It's also essential to maintain good hygiene practices when handling fruits and vegetables.
Symptoms of norovirus typically last a few days but can be severe for certain groups, such as older adults, young children, and people with weakened immune systems. Medical attention is often required in these cases.
As the outbreak continues, the CDC is closely monitoring the situation, tracking data through voluntary reporting from clinical laboratories and health departments. However, wastewater analysis offers a unique perspective on community spread, providing an "unbiased way of looking at what's happening."
The CDC estimates that 20 million people contract norovirus each year in the United States alone, making it one of the most significant causes of foodborne illnesses. This season has brought renewed attention to the importance of hand hygiene and maintaining good health habits as we head into the holiday season.
Stay informed about this developing story and follow public health guidelines to minimize your risk of infection.
As the holiday season fast approaches, Americans are facing an unexpected challenge: a rapidly spreading outbreak of norovirus. According to wastewater data, the highly contagious virus has been on the rise since mid-October, with a 69% increase in nationwide concentrations as of November 21.
Norovirus, commonly known as the "winter vomiting disease," is a human-only illness that causes severe diarrhea and vomiting. The Centers for Disease Control and Prevention (CDC) reports that between August and November last year, there were 235 reported outbreaks, with no corresponding drop-off in this year's data. This season has seen a staggering 153 outbreaks over the same period.
Experts attribute the early outbreak to a new variant of norovirus, GII.17. While it may not be more contagious than its predecessor, GII.4, which dominated the disease for decades, some researchers believe that the increased prevalence of immunity among the population could be contributing to the faster spread.
"This is one of the big questions in our scientific community," Dr. Robert Atmar, a professor at Baylor College of Medicine, noted. "Whether it's going to persist this year or not." Norovirus outbreaks typically peak between November and April but have been happening earlier than usual this season.
So, how can you protect yourself from norovirus? While there is no vaccine available yet, the CDC recommends washing your hands with soap thoroughly, cleaning infected areas with diluted bleach, and cooking oysters and shellfish properly. It's also essential to maintain good hygiene practices when handling fruits and vegetables.
Symptoms of norovirus typically last a few days but can be severe for certain groups, such as older adults, young children, and people with weakened immune systems. Medical attention is often required in these cases.
As the outbreak continues, the CDC is closely monitoring the situation, tracking data through voluntary reporting from clinical laboratories and health departments. However, wastewater analysis offers a unique perspective on community spread, providing an "unbiased way of looking at what's happening."
The CDC estimates that 20 million people contract norovirus each year in the United States alone, making it one of the most significant causes of foodborne illnesses. This season has brought renewed attention to the importance of hand hygiene and maintaining good health habits as we head into the holiday season.
Stay informed about this developing story and follow public health guidelines to minimize your risk of infection.