Since the emergence of the COVID-19 variant Omicron in late 2021, it has evolved rapidly into multiple sub-variants. One subvariant, Omicron BF.5.2.1.7 (also called Omicron BF.7), which is driving the current COVID Infection wave in China, has left the World Health Organization (WHO) “very concerned” reviving fears across the world, including India.
Apart from the UK, US, and European countries like Denmark, France, Germany, and Belgium, cases of BF.7 infection have been detected in India too.
Questions are being raised on what this new variant is about, its Symptoms, and whether it will cause a fresh wave in India.
What is Omicron BF.7 Variant?
The Omicron BF.7 strain descends from the Omicron variation BA.5. According to Chinese reports, the sub-variant BF.7 has the greatest infection capacity (extremely transmissible) when compared to other omicron sub-variants. It has a shorter incubation period and spreads more quickly than other types.
The Omicron BF.7 has a better ability to re-infect persons who have previously been infected with COVID-19, and it can even infect those who have been vaccinated.
What are the symptoms of the BF.7 variant?
Symptoms of BF.7 infection are similar to those of other omicron subvariants, especially upper respiratory illness with a runny nose, cough, fever, and sore throat. In people with weakened immune systems, the illness may be more severe.
What could be the cause of faster spread?
According to research, the R0 value of this mutant is roughly 10-18.6, which suggests that infected persons may infect 10-18.6 others around them.
The BF.7 variant has a specific mutation 'R346T' in the SARS-CoV-2 spike protein (a protein on the surface of coronavirus that allows it to attach to and infect the cells).
This mutation, which is also observed in variation BA.5 (parent of BF.7), has been related to boosting the virus's ability to evade neutralizing antibodies created by past infections or immunizations. This suggests that the antibodies produced during vaccination are ineffective against this virus.
Who is at Higher Risk of infection with the Omicron BF.7 variant?
People who are not vaccinated are at a higher risk. Also, people with weaker immunity, like children, elderly citizens, pregnant women, and those with multiple comorbidities, such as uncontrolled diabetes, cancer, kidney or heart diseases, are at a higher risk of catching this infection.
What Precaution Can Be Taken to Prevent Infection with BF.7?
With Christmas and New Year's Eve approaching, it is more important than ever to adhere to COVID-compliant behavior. Hand sanitization, wearing a mask, and keeping social distance continue to be the most important preventative measures.
While coughs, colds, and other seasonal ailments are frequent in India during these months, they should never be ignored. If you or someone else has a cough, cold, or other symptoms, obtain a COVID test very away and practice self-isolation.
