Pennsylvania is experiencing a sharp increase in influenza cases this winter, with health officials reporting some of the highest activity levels seen in years as a new flu variant circulates across the region.
Federal and state surveillance data show flu activity reaching high to very high levels in Pennsylvania following the winter holidays, mirroring trends in neighboring New Jersey and Delaware. Hospitals and health systems across the state report growing numbers of patients seeking care for fever, cough, breathing difficulties and, in some cases, gastrointestinal symptoms.
According to the Pennsylvania Department of Health, more than 14,300 positive flu tests were recorded statewide in the week ending Jan. 3. That marks a dramatic jump from roughly 1,690 cases reported during the week ending Nov. 29, highlighting how quickly infections accelerated after Thanksgiving.
Data from the Centers for Disease Control and Prevention indicate the rise has been rapid and widespread. Most test samples are coming back positive for influenza Type A, H3N2, which scientists have narrowed to a new subclade known as K. While sometimes labeled a “super flu,” health experts emphasize there is no evidence the variant causes more severe illness. Instead, it appears to spread efficiently and may extend the duration of the flu season.
International trends raise similar concerns. Subclade K has already contributed to prolonged flu seasons in Australia and New Zealand, where health authorities observed an unusual second wave of infections close to Christmas. Public health specialists say those patterns suggest the virus could linger longer than typical winter flu seasons in the United States.
Despite the surge in cases, current seasonal flu vaccines are still providing protection against serious outcomes. Medical experts note that vaccinated individuals may still get sick, but immunization continues to reduce the risk of hospitalization and death. National medical groups recommend flu shots for everyone aged 6 months and older, even later in the season.
Pediatric hospitals in Pennsylvania are also seeing an increase in young children, including infants and toddlers, arriving with breathing issues and dehydration, particularly those with underlying conditions such as asthma. Clinicians stress that antiviral medications can lessen the severity and length of illness if given within the first 48 hours of symptoms.
Health officials continue to urge preventative steps, including vaccination, frequent hand washing, cleaning commonly touched surfaces and staying home when sick.
Source: WHYY