The spread of the coronavirus shows no sign of slowing down as the FLiRT variant emerges as the dominant strain, as reported by Yale Medicine. This variant, comprising strains such as KP.1.1, KP.2, and KP.3, is now responsible for the majority of COVID-19 cases.
Numbers of reported cases continue to rise, according to the U.S. Centers for Disease Control and Prevention (CDC), with increased detection of the virus in emergency departments and wastewater systems.
Dr. Seth Cohen, a Medical Director at the University of Washington Medical Center, explained that variants like FLiRT are a natural outcome of the virus evolving over time. These changes can become concerning if they lead to more severe infections or evasion of immunity, classifying them as “variants of concern.”
Although prior variants like Alpha, Beta, Delta, and Omicron have decreased in prevalence, they have not completely disappeared. FLiRT, while sharing similarities with other Omicron lineage variants, exhibits specific mutations in the spike protein that enhances its ability to infect humans, Cohen stated.
Recent data from the CDC shows a 1.7% increase in positive COVID tests across Washington, Oregon, and Idaho, reflecting factors related to both social behavior and biology.
To combat the rising infections, vaccination remains crucial. The CDC has recommended updated inoculations for the upcoming fall and winter seasons to ensure effectiveness against new variants like FLiRT.
Despite concerns about vaccine efficacy, the current vaccines offer strong protection against severe outcomes like hospitalization and death, emphasized Cohen. Vaccination rates in Washington and Idaho show progress, but efforts need to continue for widespread protection.
Particularly for vulnerable populations such as the elderly and immunocompromised individuals, timely vaccination is essential. Waiting for new vaccines is not advised for those at higher risk of severe complications.
In the event of infection, it is important to isolate, notify others, and prioritize the safety of those at greater risk, as emphasized by Cohen. Heightened vigilance is crucial for protecting vulnerable populations from further exposure to the virus.
Even with advancements in research and medicine to combat COVID-19, Cohen anticipates that vaccines will require updates on a yearly basis. He pointed out, “We have already experienced a surge in cases during the summer. It is likely that we will see similar patterns in the coming years unless there are significant changes.”
