7 New Covid-19 Symptoms You Should Know About The JN.1 Variant
sanjeev May 21, 2025 10:22 PM

COVID-19 may no longer dominate headlines as it once did, but recent spikes across Asia particularly in Hong Kong, Singapore, and Thailand are a reminder that the virus is still evolving.

India, while seeing a comparatively mild uptick with close to 300 active cases as of mid-May, remains vigilant, especially with the JN.1 variant and its descendants (LF.7 and NB.1.8) now circulating globally.

These newer variants, although not more severe, appear to bring slight shifts in how symptoms manifest. Most infections remain mild, but health officials are urging the public to pay attention to less typical signs that could otherwise go unnoticed.

Here are the key 7 symptoms increasingly associated with COVID-19 infections in 2025.

1. Extreme Fatigue and Muscle Weakness

Unlike the general tiredness experienced with many viral infections, COVID-19 fatigue in 2025 is being described as sudden and overwhelming, even in mild cases. Muscle weakness, especially in the legs and arms, is also more commonly reported than in previous waves.

Why it matters: This fatigue can set in early and linger, even if other symptoms are absent or mild.

2. Persistent Nausea and Loss of Appetite

Stomach issues have become more common in the current wave, with many patients experiencing a sustained loss of appetite, mild nausea, or queasiness.

Why it matters: These symptoms may occur without the more familiar respiratory signs, making it harder to suspect COVID-19 without testing.

3. Runny Nose and Nasal Congestion

While this was seen in earlier variants, a runny nose is now often the first symptom in 2025 cases, sometimes leading people to misattribute it to seasonal allergies or a cold.

Why it matters: The early onset of nasal symptoms could be a cue to isolate and test before the virus spreads further.

4. Mild Headaches with Brain Fog

Patients are reporting headaches that come with a sense of mental fuzziness commonly known as 'brain fog.' Tasks that require focus, memory, or decision-making may suddenly feel more difficult.

Why it matters: Even after recovery, this cognitive lag can persist for days, potentially affecting work or school performance.

5. Low-Grade Fever and Chills

Not all COVID-19 fevers are high many recent cases are showing temperatures between 99°F and 100.4°F. These may come with chills, which can be easily overlooked or dismissed.

Why it matters: A low-grade fever might not raise alarm but, in context with other symptoms, could point to COVID-19.

6. Sore Throat with Hoarseness

This symptom has become more pronounced in 2025 cases. Throats feel scratchier, and hoarseness often lingers for days, even as other symptoms resolve.

Why it matters: It's now one of the more consistent early symptoms sometimes appearing before cough or fatigue.

7. Mild Gastrointestinal Distress

In addition to nausea, some individuals experience light abdominal discomfort or loose stools. These symptoms, while non-severe, have become more frequent in newer subvariants.

Why it matters: This makes COVID-19 more difficult to distinguish from other common stomach viruses unless tested.

What Can You Do To Keep Yourself Safe?

While the new wave appears less severe, health authorities emphasise that prevention is still key, especially for vulnerable groups such as the elderly, those with underlying conditions, or the immunocompromised.

Here are essential precautions to follow:

  • Stay updated on vaccinations and boosters, especially if your last shot was over a year ago.
  • Wear a mask in crowded or poorly ventilated places.
  • Practice regular hand hygiene and avoid touching your face.
  • Isolate if symptomatic and get tested even mild or unusual symptoms can be COVID-related.
  • Consult a doctor if you are at higher risk or if symptoms worsen after a few days.

COVID-19 in 2025 is evolving, but it hasn't disappeared. The JN.1 variant and its offshoots are leading to fresh infections with subtler, more diverse symptoms. Stay informed and cautious, no need to panic. A little vigilance can go a long way in keeping your family and surroundings safe.

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