Both strains are causing mild symptoms and are contagious. Patients with nimbus are experiencing ‘razor blade throat,’ a sore throat making it difficult to swallow. Other symp ...

Here's what is known about the new Covid XFG, or 'Stratus', variant from UK cases and symptoms to what the World Health Organisation has said ...

The leader of the U.S. FDA's division that oversees vaccines, Vinay Prasad, overruled the recommendations of his agency's ...

India is seeing a rise in COVID-19 cases, with 7,154 active infections as per the Health Ministry on June 12, 2025. The surge is linked to emerging variants NB.1.8.1 and LF.7, while JN.1 remains the ...

Gujarat reported 451 active Covid-19 cases in June 2025, driven by Omicron sub-variants LF.7.9 and XFG Recombinant. Ahmedabad, a hotspot with 50 new cases, sees seven deaths, including a pregnant teen ...

The hybrid consists of the omicron variant's spike protein attached to the original virus When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Since Omicron hit in late 2021 and early 2022 the path of the pandemic seems to have changed. Instead of big evolutionary leaps the Omicron lineage has splintered into scores of different subvariants.

An early analysis of Moderna’s omicron-specific shot showed that it generated more antibodies against the omicron virus than the original vaccine, the company announced earlier this month.

A study of vaccinated individuals with breakthrough COVID-19 infection showed that their antibodies, while effective at stopping original strain of virus, were less effective at preventing infection ...

Delta-omicron recombinant virus no reason for panic, health experts say The hybrid virus is rare, and data on spread and disease severity is not concerning.

The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.

The omicron variant of the coronavirus is more transmissible and can evade the immune system better than earlier versions of the virus, thanks in large part to mutations in spike protein.