According to a leading US organisation, COVAXIN is effective against the Delta variant of the coronavirus.
Many coronavirus variants have emerged and caused fatal outbreaks around the world as a result of the coronavirus pandemic. Experts are currently concerned about the new Delta Plus variant. It is spreading in India and other countries, and doctors believe it may be able to overcome prior immunity. Meanwhile, a top US regulatory body has confirmed that COVAXIN is effective against the Delta variant.
The new variant was created by adding a mutation (K417N) to the Delta variant (B.1.617.2), which was responsible for India’s lethal second wave of the pandemic. The Indian government recently designated it as a “Variant of Concern.” According to a top genome sequencing authority in India, the variant has several dangerous characteristics, including increased transmissibility and stronger binding in lung cell receptors.
Will this variant have an impact on vaccine efficacy?
According to Dr. Tanu Singhal, Consultant, Paediatrics and Infectious Disease at Kokilaben Dhirubhai Ambani Hospital in Mumbai, there is no data yet to show that the Delta Plus variant would affect the immunity developed from vaccination. Dr. Singhal told Hindustan Times, “We don’t have sufficient knowledge about the transmissibility or the virulence or the immune escape properties of this Delta Plus variant.”
Is it possible for a recovered Delta Plus patient to become infected again?
“Reinfections have been rare so far,” Dr. Singhal said.
Even in cases of reinfection, the disease is usually mild, and the patient does not need to be hospitalised, she explained. However, it is too early to tell if this will be the case with the Delta Plus variant as well, according to the doctor. “We don’t know how common that will be for Delta Plus reinfection.”
Are there any other symptoms you should be aware of?
“We don’t have enough data yet to say whether the symptoms are milder or more severe than in the Delta variant,” Dr. Singhal told HT. The most common coronavirus symptoms are fever, dry cough, fatigue, body aches, headache, anosmia, tastelessness, and so on.
Is COVAXIN effective against Delta?
Separately, the United States’ National Institute of Health (NIH) reported that COVAXIN, India’s only approved indigenous vaccine to date, is effective against both Alpha and Delta variants of the COVID-19.
The NIH cited the findings of two studies in which blood serum from COVAXIN recipients was tested against the two variants in question. In phase three trials, COVAXIN was found to be 78 percent effective against symptomatic disease.