Coronavirus super spreaders were behind the explosion of Kovid-19 in India, the researchers said.
The group of patients, which includes about 100% of confirmed cases in India, accounted for about two-thirds of the total infections, scientists said in a study published in the Journal on Wednesday. Science. The research, based on the fact that more than 3 million contacts were detected in the southern states of Andhra Pradesh and Tamil Nadu during August 1, is the first major study of transmission in a developing country.
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Most of the research on the epidemic has come from China, Europe and North America, while cases are now being seen in India and other developing countries, said researchers led by Ramanan Laxminarayan, chairman of the Center for Disease Dynamics, Economics and Policy. . Barriers to health care are high in these countries, and the risk of serious illness and death from covid is high, they said.
Laxminarayan said in an interview, “We never have so much information to say, hey, some people are actually transmitting the virus in large numbers.” Unlike the super-spreader minority, 71% of confirmed cases whose contacts were traced did not transmit the virus to anyone.
A nationwide serological survey found that one in 15 Indians had contracted the coronavirus. Hospitals and hospitals in some states are now struggling to secure medical oxygen, which is needed to help patients with difficulty breathing on their own.
Data for the study of science was collected by thousands of contact-tracers during India’s lockdown, while large gatherings were banned, schools were closed and people were ordered to wear face masks in public. India’s two states are home to about 100 million people, making up about 10% of the country’s population. More than 2.2 million Kovid-1 cases have been reported in India.
Prolonged close contact
Laxminarayan said that both the states had recorded the first SARS-COV infections in March. Health workers regularly detected potential transmitters of HIV and tuberculosis using as many skills and resources as possible and found as many as 80 contacts per confirmed case.
According to researchers from Princeton University, Johns Hopkins Bloomberg School of Public Health and even Indian state governments, prolific SARS-CV-2 transmitters spread the virus during long-term exposure to buses and other forms of transportation. In such settings, the probability of infection was 79%.
Laxminarayan said it compares to just one in 40 chances of catching the virus from someone in the community, Laxminarayan said. However, children under the age of 14 have been found to be frequent “quiet” spreaders of the virus, especially for their parents and peers.
“This shows that even when schools are not functioning, broadcasting from children to children seems very important,” he said. “It’s terrible to say – with two kids at home – it’s really important to have kids at home.”