LNP – Monitoring increases as new COVID sub-variants detected

Health authorities in Sri Lanka have ramped up monitoring efforts following the detection of two new Omicron subvariants – LF.7 and XFG – within the country.

A reliable source told Daily Mirror that though there is currently no surge in COVID-19 cases, the government is considering stepped-up surveillance at international airports and harbours.

This follows the recent detection of the two new Omicron subvariants in the country.

According to medical experts, the appearance of new variants is a routine part of viral evolution. “Periodic mutations are expected, and our systems are prepared to respond swiftly,” an expert said.

The health sector is keeping a close eye on both global and local developments.

Moreover, Professor Chandima Jeewandara, an expert in Allergy, Immunology and Molecular Medicine shared this advice as a new COVID-19 variant, NB.1.8.1, is causing a rise in cases worldwide.

“This variant, a sublineage of Omicron, was first identified in January 2025 and has since been found in many countries. By mid-May, it accounted for about 10.7% of global COVID-19 cases. NB.1.8.1 symptoms are similar to earlier COVID-19 strains, such as sore throat, fever, mild cough, fatigue, muscle aches, and nasal congestion. A new and more common symptom is hoarseness, which may help distinguish it from other variants,” he said in a recent X post.

Further, Professor Jeewandara said the new variant does not seem to cause more severe illness than earlier strains. Most infections are mild, especially in people who are vaccinated.

“There is no need to be alarmed, but we must remain careful,” he said.

“Wearing a mask when you’re sick, washing your hands often, and following public health advice from the Ministry of Health are simple but important steps to stay safe,” Jeewandara added.

Meanwhile, a senior official at the Health Ministry said hospitals across the country are well equipped to handle a potential surge in COVID-19 cases.

“Facilities have been strengthened with adequate isolation units, medical supplies, and trained staff to respond swiftly if the situation escalates. We have the infrastructure in place to manage any increase in patient numbers,” the official added.

Meanwhile, Dengue, Chikungunya, and influenza are already on the rise, especially among children, said Dr. Deepal Perera from Lady Ridgeway Children’s Hospital.

He noted a spike in mosquito-borne diseases following recent adverse weather conditions.

Influenza cases are also climbing putting additional strain on healthcare services.