India is witnessing a fresh surge in Covid-19 cases, with health authorities confirming the emergence of two new variants: NB.1.8.1 and LF.7. The total active case count has climbed to 1010 as of May 27, 2025, with Kerala being the worst-hit state. Public health officials are urging calm as symptoms remain mild in most cases, although hospital preparedness has been ramped up across states.
The spike in infections is largely being attributed to the new sub-lineages of the JN.1 strain, which have shown mild transmissibility. The World Health Organization (WHO) has placed the NB.1.8.1 and LF.7 variants under observation but has not issued a global warning. With 335 new cases in Kerala alone, the state now reports over 430 active cases, followed by Maharashtra (278) and Delhi (104). Other states seeing rising cases include Gujarat, West Bengal, Karnataka, and Rajasthan.
Health ministries across various states are taking proactive steps. Pune's municipal health department has started testing for Severe Acute Respiratory Illnesses (SARI) and Influenza-Like Illnesses (ILI). Contact tracing has resumed, and hospitals like BJ Medical College and Naidu Hospital are on alert.
The Union Health Secretary conducted a high-level review meeting involving senior officials from the Indian Council of Medical Research (ICMR), National Centre for Disease Control (NCDC), and Directorate General of Health Services (DGHS) to discuss containment strategies. Delhi Chief Minister Rekha Gupta and Karnataka CM Siddarammaiah have assured citizens that hospitals are fully equipped to manage potential spikes in hospitalizations.
Even though the majority of cases are currently being managed on an outpatient basis due to their mild nature, there have been isolated reports of severe outcomes in patients with comorbid conditions. Seven Covid-related deaths have been reported so far, mostly involving individuals with underlying illnesses like diabetes and tuberculosis. These include a TB patient in Rajasthan and a diabetic patient in Maharashtra who suffered multiple organ failure.
Current Status, Symptoms, and Variant Insights
According to the Indian SARS-CoV-2 Genomics Consortium (INSACOG), the new NB.1.8.1 variant has a stronger cell-binding potential, making it more transmissible than earlier strains. Over 58 genome sequences have been submitted globally, with several cases also being detected in the United States in states like Ohio, Hawaii, and Rhode Island.
Despite these developments, experts highlight that over 95% of India’s adult population is vaccinated, which may be contributing to the milder presentation of symptoms. The common symptoms reported in 2025 include sore throat, mild cough, nasal congestion, nausea, low-grade fever, headaches, fatigue, and stomach discomfort. These symptoms typically resolve within 3-4 days, and patients are advised to take a rapid antigen test or RT-PCR if symptoms persist beyond that timeframe.
Precautionary steps being recommended include wearing masks in crowded indoor spaces, maintaining hand hygiene, and avoiding close contact with symptomatic individuals. Public gatherings are being closely monitored, especially in metro cities like Mumbai, Delhi, and Bengaluru.
While the rise in Covid-19 cases in India has sparked public concern, officials and healthcare professionals emphasize there is no need to panic. The country’s healthcare system is prepared, surveillance has been increased, and most cases are mild. Vigilance, rather than fear, remains the best response as scientists continue to study the impact and behavior of the NB.1.8.1 and LF.7 variants. The coming weeks will be crucial in determining whether this spike is short-lived or the beginning of a larger wave.
