Many people in the UK have recently experienced severe cold-like symptoms, raising concerns about a resurgence of Covid-19 due to new variants known as FLiRT and LB.1. These strains have been spreading across the country this summer, leading to illness in numerous individuals.
Dr Mariyam Malik, an NHS and private GP at Pall Mall Medical, explains that increased travel and large events such as festivals create crowded settings where the virus can spread more easily, especially with no legal restrictions like mask-wearing or social distancing in place.
The FLiRT variant has specific changes in its spike protein that may make it spread more easily and evade immunity from past infections or vaccines. Similarly, the LB.1 variant has mutations that help it spread and potentially weaken protection from previous immunity. Symptoms of both variants are generally similar to earlier Covid-19 strains and include a persistent cough, sore throat, and other cold-like signs.
Dr Malik advises that people infected with these variants typically test positive on standard PCR tests, while rapid antigen tests (lateral flow tests) can also detect them, though sensitivity may vary. For those with symptoms, self-isolation, rest, and hydration are recommended, along with over-the-counter medications like paracetamol and ibuprofen for symptom relief.
To prevent spread, staying up to date with vaccinations and boosters, regular hand-washing, and testing and isolating if symptoms develop are crucial. For mild symptoms, home treatment is usually sufficient, but individuals with underlying health conditions should contact their GP if they test positive or develop symptoms, as they may be at higher risk for severe illness.
