New Delhi: The easiest barrier is the booster dose of COVID-19 vaccines, according to eminent virologist Dr T Jacob John, who should be immediately built against Omicron, who noted that this may not be the seed of the third wave of the pandemic, but a breakthrough infection. The reasons may be common with the new version.
When a person gets the infection even after being vaccinated, it is called a breakthrough infection.
A new variant of COVID-19 has been detected in South Africa that is suspected to have a high concentration of spike mutations. On 26 November, the World Health Organization (WHO) designated B.1.1.1.529, which was first detected as a variant of concern on the advice of its Technical Advisory Group on Virus Development in Southern Africa (TAG-VE). And it was named Omicron. ,
Speaking to PTI on Omicron, John, an eminent virologist and former director of ICMR’s Center of Advanced Research in Virology, on Tuesday said the adage here is to “expect the best but be prepared for the worst”.
“While only 30 percent of the population is vaccinated with two doses, the cup is a third full,” he said.
John said India’s population is well immune to the huge first wave of the Covid pandemic (which lasted eight months, probably infecting about 30 per cent of the population) and the deadly second wave (which can infect in 12 weeks, Probably about 75-80 percent is infected) the remainder, as well as many re-infections within these numbers).
“Against this background, what can happen if the variant enters and spreads far and wide is unpredictable. It may not be as bad as people fear. It may not be the third wave. Still, wise course To avoid imports and strengthen our ‘population immunity’ (called herd immunity. That means two things – unvaccinate and offer a booster dose for all two-dose vaccines,” he said. said.
The booster dose is the easiest barrier we can and should build against the variant immediately, he said.
“In addition, first dose recipients should be given the second dose and all others, including children, the first dose. Pregnant women — two doses in the first pregnancy, started as soon as possible, and one booster dose in the next pregnancy,” John said .
Talking about the effectiveness of vaccines against the new variant, he said that breakthrough infections could be common.
“It seems likely that breakthrough infection will be common. However, the original virus is similar and the high level of immunity that can be achieved with booster doses is expected to be highly protective against disease and even infection.” can go,” he said.
Talking about the mutations in Omicron, John said that 34 mutations have been observed, which is more than alpha, beta, gamma and delta and all other forms of anxiety.
On the transmittance of the new version, he said, “If the original virus transmission level is taken as the baseline, level 1, the delta was about two to three times higher and Omicron even more, 10 times higher,” a scientist in Switzerland said. thinks.”
On comparing Delta with Omicron, he said that the latter is a “more efficient transmitter, more resistant to immunity due to two doses of vaccines, possibly no more virulent or more severe disease than Delta”.
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