Worst Flu Season in Over a Decade Hits the U.S.: What You Need to Know

The United States is facing its worst flu season in over a decade, with at least 310,000 flu-related hospitalizations and 13,000 deaths reported since October, according to the Centers for Disease Control and Prevention (CDC). Public health experts attribute the severity of this season to several factors, including reduced immune resilience from the COVID-19 pandemic and a less effective flu vaccine.  

Why Is This Flu Season So Severe?  

Preliminary CDC data suggests the flu vaccine may not be as effective this year as it has been in prior seasons. The flu shot is updated annually based on circulating strains, but matching the vaccine to the dominant strains can be challenging.  

Behavioral changes have also played a role. Fewer people are masking when sick, and immune systems may still be "out of practice" due to limited exposure to respiratory viruses during the pandemic, explained Dr. Robert Hopkins, medical director of the National Foundation for Infectious Diseases.  

“Flu is widespread across almost all of the country right now, so we need to be cautious and aware,” said Hopkins, who recommended staying home when ill, covering coughs, and minimizing actions that could expose others to flu droplets.  

How to Protect Yourself Against Severe Illness  

Although flu season typically lasts until May, there are ways to reduce your risk of severe illness:  

1. Get the Flu Vaccine

Even if you haven’t received your flu shot yet, it’s not too late. Vaccination is particularly crucial for those at higher risk of complications, including adults 65 and older, children younger than 2, and individuals with underlying health conditions.  

“If you do get the flu, having the vaccine can reduce the severity of symptoms,” said Dr. Edward Chapnick, chief infection prevention officer at Maimonides Medical Center in New York City.  

2. Use COVID and Flu Combo Rapid Tests

Flu and COVID-19 share common symptoms, but treatments differ. Rapid, at-home tests that detect both viruses can help pinpoint which illness you have and guide effective treatment. These tests generally cost between $30 and $40 for multi-packs.  

“These combination tests are helpful and allow you to respond quickly. You can also visit an urgent care center to get tested and prescribed antivirals, if necessary,” said Hopkins.  

Doctors can prescribe medications such as Tamiflu (oseltamivir), taken orally, or Relenza (zanamivir), inhaled, to treat flu symptoms.  

3. Seek Treatment Quickly

Although antiviral drugs for the flu are most effective within 48 hours of developing symptoms, they can still help reduce the severity of illness later.  

“The drugs may not shorten the duration of illness past the first two days, but they can still make symptoms less severe,” Chapnick explained.  

People with pre-existing health conditions should visit an urgent care center to prioritize faster treatment. In some states, local pharmacists are also authorized to test for flu and prescribe medications directly—patients should call their pharmacy to check if this service is available.  

A Call to Vigilance  

As flu cases continue to surge, public health experts are urging individuals to take preventative measures and seek treatment early. With widespread illness and thousands of hospitalizations already reported, getting vaccinated, practicing good hygiene, and seeking timely medical care are important steps to reduce risks.  

Being proactive and utilizing available resources can help Americans navigate this challenging flu season.