Britain is facing a new wave of COVID-19 infections driven by mysterious new variants displaying unusual symptoms that differ significantly from earlier strains of the virus. Health authorities are monitoring two particularly concerning variants - nicknamed 'Nimbus' and 'Stratus' - which are causing distinctive patterns of illness across the UK.
Unusual Symptoms Setting New Variants Apart
According to the latest data from the UK Health Security Agency (UKHSA), these emerging variants are presenting with symptoms that many might not immediately associate with COVID-19. The most notable include:
- Severe night sweats that drench bedding and sleepwear
- Disrupted sleep patterns and insomnia
- Persistent fatigue that continues for weeks
- Gastrointestinal issues including nausea and digestive discomfort
Professor Lawrence Young, a virologist at Warwick University, explains: "What we're seeing with these new variants is quite different from the classic COVID symptoms we became accustomed to during earlier waves. The absence of traditional signs like loss of taste or persistent cough means many people may not realise they're infected."
Understanding the Variant Landscape
The 'Nimbus' variant, scientifically known as BA.2.86, has attracted significant attention due to its extensive mutations. Meanwhile, 'Stratus' represents another offshoot that health officials are monitoring closely. Both variants appear to be contributing to the current autumn wave of infections sweeping across the country.
Dr Mary Ramsay, Head of Immunisation at UKHSA, emphasises: "While these variants show increased transmissibility, there's no evidence to suggest they cause more severe disease than previous strains. However, their ability to evade immunity means even those previously infected or vaccinated can catch COVID again."
Protection and Prevention Measures
With the new variants circulating widely, health experts recommend several key precautions:
- Stay updated with boosters - autumn vaccination programmes are now underway
- Maintain good ventilation in indoor spaces
- Consider wearing masks in crowded public settings
- Stay home when symptomatic to prevent further spread
The NHS continues to offer COVID-19 vaccinations to eligible groups, with health authorities urging those at higher risk to take up the offer of autumn boosters. As Professor Young notes: "The virus continues to evolve, and our defences need to evolve with it. Staying protected remains our best strategy against these new variants."
