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Super Spreader Events and Not Mutations May be Behind Surge in Covid-19 Cases in India, Say Experts


The rise in Covid-19 circumstances in India within the final one week, particularly in states of Maharashtra, Punjab, Kerala, Chhattisgarh and Tamil Nadu, is elevating issues whether or not the spurt in new circumstances is linked to new variants of SARS-CoV-2.

In accordance with a report by Moneycontrol, the spike in circumstances could also be attributed to tremendous spreader occasions greater than mutations of the virus.

Consultants corresponding to Dr V Ravi, Retired Professor of Neurobiology at NIMHAN and Nodal Officer for Genomic Affirmation of SARS-CoV-2, Authorities of Karnataka, informed Moneycontrol there’s completely no proof to counsel that there’s a new variant in Maharashtra, which is inflicting a spike in circumstances. He says that the newest upsurge is triggered by tremendous spreading occasions which have led to neighborhood spill over and the following lack of testing, monitoring and tracing.

Viruses mutate on a regular basis, extra so for viruses that include RNA as their genetic materials like coronavirus. Most mutations are so small that they don’t considerably have an effect on how the virus works, or generally make the virus weaker.

In sure circumstances, a mutation helps the virus to amass the power to dodge the immune system, infect folks and reproduce. These strains are likely to change into dominant. For example, the SARS-CoV-2 virus makes round one or two mutations a month. That is regular and far decrease than for different viruses, corresponding to HIV and influenza. The extra the virus circulates, the extra the possibility of its mutating. Measures corresponding to face masking, hand hygiene and social distancing, coupled with mass vaccination, will assist in reducing the scope for viruses to mutate.

Two new mutant variants of the SAR-CoV-2 virus, N440Okay and E484Q, have been detected in Maharashtra and another states. The federal government had earlier clarified that the present upsurge of Covid-19 circumstances in Maharashtra can’t be attributed to those two strains.

ICMR has additional defined that these two virus strains have been detected in different international locations too and will not be India-specific. Furthermore, they’ve been discovered earlier in some states in India. The E484Q pressure was detected in 4 sequences in Maharashtra as early as March and July 2020. The N440Okay mutation has been reported on 13 totally different events between Could and September 2020 in Telangana, Andhra Pradesh and Assam. ICMR stated it has been carefully monitoring the state of affairs.

It’s effectively established that the variants of the UK, South Africa and Brazil are extremely transmissible. The South Africa pressure is thought to scale back the efficacy of vaccines as effectively.





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