Doctors Warn of Increasing Flu Cases

• Flu cases are on the rise again, after a period of decline.

• A potential “second peak” is anticipated, according to experts.

• Medical professionals share tips on avoiding serious illness from the flu.

This year’s flu season has certainly been challenging. As of now, in the U.S., there have been around 20 million cases, 270,000 hospitalizations, and approximately 11,000 flu-related deaths, including 52 children, based on estimates from the CDC. After a brief decline in cases, it looks like the numbers are climbing back up.

Recent CDC data indicates an increase in doctor visits related to flu symptoms, and positive lab results for the virus are also rising. The weekly FluView report has noted that “seasonal influenza activity remains elevated nationally” and saw an uptick during Week three after three weeks of decline.

Some experts foresee a “second peak” in cases. Although it’s unclear exactly what lies ahead, infectious disease doctors consider the prediction of a second wave likely.

What’s behind the second peak?

Infectious disease physicians suggest multiple reasons for this uptick. Notably, there are different strains of the influenza virus in circulation, and it’s common for one strain to surge once another wanes. As noted by Amesh A. Adalja, an infectious disease expert, while influenza A H3N2 has been the dominant strain recently, influenza B is also gaining ground.

William Schaffner, another infectious disease specialist, points out that influenza B often becomes more significant later in the flu season. It might seem that we are transitioning from influenza A to B, although Dr. Adalja emphasizes that many people remain susceptible to influenza A since it is still prevalent.

Geography also plays a role in flu spread. Thomas Russo highlights that flu doesn’t impact all areas uniformly. For instance, New York experienced an early spike in cases but is now seeing a decline.

The cold weather across many regions is also a factor, according to Dr. Russo, as it pushes people indoors, potentially contributing to increased flu transmission.

Can I get the flu twice in one season?

It’s a common misconception that once you’ve had the flu, you’re safe for the rest of the season. In reality, if you’ve had influenza A, you could still catch influenza B. This is one reason why flu vaccines cover multiple strains.

For those at higher risk for severe complications, it’s vital to continue protective measures. Dr. Adalja suggests getting vaccinated, practicing good hand hygiene, and wearing masks in crowded indoor spaces.

Where will flu season go from here?

Given the early onset of flu season and indications of a second peak, there’s a notion—or perhaps just hope—that the season might conclude earlier than usual. However, experts like Dr. Schaffner caution that it’s difficult to predict flu patterns. He mentions that while an abbreviated season would be nice, it’s often not the case.

Dr. Adalja believes we could be looking at “a few more months” of flu activity. Ultimately, it’s important to stay vigilant, as flu cases are on the rise again. Dr. Schaffner reminds us, “This is not the time to let down your guard.” Flu season certainly isn’t over yet.