This flu season has been the worst flu season in at least five years — and a decline in flu vaccinations could be one reason why. CDC data indicates that only 45% of adults and children nationwide have received flu shots this season—well below the Centers for Disease Control and Prevention’s (CDC) target of 70%.
According to Angle Slater, a disaster relief nurse manager at Mendocino County Public Health, flu cases spiked earlier this year, with state-wide testing showing significantly higher infection rates compared to the previous season.
From January 1 through February 26, Mendocino County recorded 1,205 positive flu cases, including 679 cases of Influenza A, 39 cases of Influenza B, and 487 cases where the strain was unspecified. Additionally, the county has reported five or fewer flu-related deaths during this period.
Slater noted that flu positivity rates were particularly high in January and February, reaching approximately 30%, compared to 22-23% during the same period last year. Though case numbers are now on the decline, with flu positivity rates dropping to 20% in March, she emphasized that the risk remains significant, particularly for immunocompromised individuals.
“The flu is contagious starting 24 hours before symptoms appear and can be spread for up to 10 days,” Slater said. “Many people don’t realize they’re sick right away and unknowingly expose others.”
The CDC estimates that, nationwide, at least 37 million flu cases have occurred this season so far, leading to 480,000 hospitalizations and 21,000 deaths. Hospitalization rates for flu are the highest seen since the 2010-2011 season.
Slater urged residents to take preventive measures, including vaccination, wearing masks when necessary, and practicing good hand hygiene. She also advised those experiencing mild flu symptoms to avoid clinics and emergency rooms unless they are at high risk for complications.
“For those who are immunocompromised or at higher risk, prescription antiviral medications like Tamiflu can help alleviate symptoms,” she added. “But the best way to prevent severe illness is to get vaccinated and stay home if you’re sick.”
As flu season continues, Mendocino County health officials stress the importance of public cooperation to limit further spread, especially as COVID-19 and RSV remain present in the community.
