Prognosis
Coronavirus Super-Spreaders Drove Explosive Outbreak in India
- Majority of infections could be traced to 8% of Covid-19 cases
- Long bus journeys, children’s role studied in virus spread
Photographer: T. Narayan/Bloomberg
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Coronavirus super-spreaders were behind the explosion of Covid-19 in India, the country with the most cases after the U.S., researchers said.
A group of patients that included about 8% of India’s confirmed cases later led to almost two-thirds of its total infections, scientists said Wednesday in a study published in the journal Science. The research, based on tracing more than 3 million contacts in the southern states of Andhra Pradesh and Tamil Nadu through Aug. 1, is the first major study of transmission in a developing country.