With the detection of two new Omicron subvariants—LF.7 and XFG—within the country, authorities are considering tightening health surveillance measures at international airports and seaports, according to Daily Mirror.
Medical professionals say the emergence of new variants is a normal part of how viruses evolve. “Mutations are to be expected, and we have systems in place to respond quickly,” a medical expert commented.
Health officials are closely monitoring both global and domestic trends in virus transmission.
Professor Chandima Jeewandara, an expert in Allergy, Immunology, and Molecular Medicine, also addressed concerns over the global rise in COVID-19 cases linked to a new variant, NB.1.8.1. This Omicron subvariant was first identified in January 2025 and has since spread to multiple countries. By mid-May, it accounted for approximately 10.7% of COVID-19 cases worldwide.
The symptoms of NB.1.8.1 are similar to previous strains—fever, sore throat, mild cough, fatigue, muscle pain, and nasal congestion. However, hoarseness has emerged as a more frequent and noticeable symptom with this variant.
Professor Jeewandara emphasized that, based on current data, NB.1.8.1 does not appear to cause more severe illness than earlier forms of the virus. Most cases remain mild, especially among vaccinated individuals.
“There’s no cause for panic, but caution is necessary,” he said. “Simple steps such as wearing a mask when unwell, frequent handwashing, and following Ministry of Health guidelines remain crucial in preventing the spread.”
A senior Health Ministry official stated that hospitals across the nation are fully prepared to handle a potential increase in COVID-19 cases. “We have strengthened isolation facilities, ensured sufficient medical supplies, and trained our staff to act quickly if needed,” the official explained.
At the same time, other illnesses are also putting pressure on the healthcare system. Dr. Deepal Perera from Lady Ridgeway Children’s Hospital noted a rise in Dengue, Chikungunya, and influenza cases, particularly among children. He linked the increase in mosquito-borne diseases to recent adverse weather conditions.
Influenza infections are also on the rise, adding further strain on health services already working to manage multiple disease outbreaks.







