Flu Season Worsens: Key Protection Tips You Need

As the peak flu season approaches, the spread of a new flu variant, known as subclade K, has led to a significant increase in infections and hospitalizations across the United States. Public health experts warn that this wave of illness may persist for several weeks.

Current Flu Situation in the U.S.

According to the CDC, flu activity is currently classified as high or very high in 32 states and regions. This figure is nearly double the count from the previous week. Over seven million Americans have contracted the flu this season, resulting in more than 3,000 deaths thus far.

Vaccination Rates

• Only about 25% of adults have received the flu vaccine.
• A mere 17% of children are vaccinated as of November.

Understanding the Subclade K Variant

Andrew Pekosz, a virologist at Johns Hopkins Bloomberg School of Public Health, explained this subclade K strain and its potential impact. This virus is part of the H3N2 group and has undergone mutations that enable it to evade existing immunity in the population.

Vaccine Efficacy

This year’s flu vaccine has experienced a mismatch with the circulating strain. This mismatch can reduce vaccine efficacy against infection, especially for this variant. However, even with this mismatch, vaccination can still provide protection against severe disease.

It’s crucial to note that the influenza vaccine takes about two weeks to produce a robust immune response. Therefore, vaccination remains advisable, even in regions experiencing a rise in flu cases.

Risk Factors and Population Impact

Everyone is at risk of infection, but certain groups are more susceptible to severe disease. Children under 11 years old and individuals over 65 years are particularly vulnerable. Currently, severe cases have been reported, but the data does not suggest that the subclade K variant is more dangerous than other H3N2 strains.

Regional Outbreaks

Influenza tends to appear in various states at different times. New York has been notably affected by the subclade K variant, serving as an early indicator of the virus’s spread. Other states are expected to experience similar outbreaks over the coming weeks.

Protective Measures Against Flu

• Get vaccinated against the flu.
• Maintain a healthy lifestyle through diet and exercise.
• Practice good hygiene, such as sneezing into your elbow.

As the flu season intensifies, taking these steps can help protect yourself and others during this challenging time.