COVID-19 Resurgence: New Variants, New Symptoms – What You Must Know

COVID-19 Resurges: How This New Symptom is Key to XFG, NB.1.8.1, and LF.7 Variants

COVID-19 Makes a Comeback: Here's What You Need to Know

COVID-19 is making headlines once again. After years of global disruption, the virus has seen a gradual return in Asia, with Singapore and Hong Kong reporting the highest surge in cases over recent weeks.

In India, the situation is evolving with new variants NB.1.8.1, LF.7, and the recently detected XFG variant spreading across multiple regions. While the government maintains there’s no immediate cause for panic, it’s essential to stay informed about what makes these variants unique, especially their new symptoms.

The New Symptom You Must Watch: Hoarseness

One striking feature of the current COVID wave is the hoarse voice many patients experience. Unlike previous variants where loss of taste and smell were key symptoms, the present wave is marked by:

• Dry or irritated cough
• Throat pain
• Hoarseness of voice 

Doctors across hospitals in India confirm that hoarseness is now a common symptom among COVID patients. While most cases remain mild, OPD (Outpatient Department) visits have spiked by 3-4 times in the past 10 days, signaling a growing concern.

Are These New Variants More Transmissible?

Early data suggests that:

• The NB.1.8.1 variant shows a growth advantage, making it potentially more transmissible.
• The LF.7 variant is being closely monitored by the World Health Organization (WHO).
• The XFG variant is still under study, but its presence adds to the evolving situation.

Good News: Most Cases Remain Mild

Experts emphasize that higher transmissibility does not mean more severe illness. Factors like mutations in the spike protein, immune evasion, seasonal changes, and human behavior contribute to the spread. Still, elderly people, children, and those with underlying health conditions should remain cautious.

Is the Vaccine Effective Against New Variants?

• Over 95% of adults in India are vaccinated, with 75% having booster doses.
• However, only 18% have received updated Omicron-targeted vaccines.

While vaccines may be less effective against infection from newer variants, they continue to offer strong protection against severe disease and hospitalization.

For more details, read our dedicated post on COVID-19 Vaccine in India 2025.

Health officials recommend:

• Staying updated with booster doses
• Encouraging young adults turning 18 to get vaccinated
• Ensuring vulnerable populations remain protected

COVID-19 or Seasonal Flu? Know the Difference

With the monsoon season, it’s easy to confuse COVID-19 with flu or other respiratory illnesses. Symptoms often overlap, but some signs are more specific to COVID:

• Hoarseness, dry cough, throat pain
• Diarrhea or unexplained fatigue
• Loss of taste and smell (less common this wave)

Doctors advise testing for COVID if these symptoms appear to ensure timely isolation and care.

Read our detailed analysis on COVID-19 Returns in 2025.

What Should You Do? Precaution is Key

🔹 Monitor symptoms: Hoarseness, cough, fever, throat discomfort

🔹 Get vaccinated and stay boosted

🔹 Follow hygiene: Mask up in crowded areas, wash hands regularly

🔹 Monitor oxygen levels if you test positive

🔹 Stay informed: Follow updates from health authorities

Stay updated with COVID-19 Surge in India 2025 and India Monitors COVID-19 Cases.