Amidst the flu, RSV, cold, and COVID season, cases are once again on the rise. According to the Centers for Disease Control, the rates of infection have been steadily increasing, marking a concerning trend as the holiday season unfolds.

Since the arrival of the virus over three years ago, a multitude of COVID-19 variants and mutations have emerged, contributing to the ongoing challenges despite advancements in preventive care, treatments, and vaccines.

The newest COVID variant, named JN.1, is one such mutation currently spreading across the nation and several other countries. Descending from the omicron family, like other circulating strains, JN.1 appears to be more contagious, leading to its rapid spread.

Now the second-largest source of COVID cases, JN.1 is a significant health factor to consider when planning holiday visits with family. Here's what we know about the symptoms to be vigilant for.

JN.1 Variant Spread: A Growing Concern

What is COVID variant JN.1?

JN.1 currently stands as the fastest-growing covid-19 variant in the U.S. Originating from the omicron family substrain BA.2.86, or Pirola, which arrived in the U.S. during the summer, JN.1 was first detected in September. According to the CDC, it has been identified in 12 countries and now accounts for over one-fifth of all cases as of the latest data released on Dec. 9. The variant is responsible for 15% to 29% of COVID cases, a significant increase from the previously reported 8%.

The rapid spread of JN.1 suggests increased transmissibility or enhanced evasion of existing immunities, as noted by the CDC.

Symptoms of JN.1

As reported by USA TODAY, there is currently no evidence that JN.1 causes more severe illness or exhibits significantly different symptoms than other circulating variants. Symptoms of a JN.1 COVID-19 infection may be easily mistaken for those of a mild case of the flu, cold, or respiratory infection. According to the CDC, symptoms may include:

• Cough.
• Sore throat.
• Headache.
• Muscle aches.
• Fever.
• Change in or loss of taste or smell.
• Congestion and runny nose.
• Fatigue.
• "Brain fog" (feeling less wakeful and aware).
• Shortness of breath.
• Gastrointestinal symptoms (upset stomach, mild diarrhea).

The latest COVID-19 vaccines and treatments are expected to be effective against JN.1, despite its mutated form. However, individuals experiencing shortness of breath or difficulty breathing should seek prompt medical attention.

The CDC emphasizes that the type and severity of symptoms depend more on each person's immunity and health history than on the specific variant they contract.