Covid-19: identifying and isolating asymptomatic people helped eliminate virus in Italian villageBMJ 2020; 368 doi: https://doi.org/10.1136/bmj.m1165 (Published 23 March 2020) Cite this as: BMJ 2020;368:m1165
- Michael Day
- London, UK
An Italian academic has claimed striking evidence that most people infected with covid-19 show no symptoms but are still able to infect others, which he says has huge implications for testing policy, particularly in hospitals.
Sergio Romagnani, a professor of clinical immunology at the University of Florence, has reported how blanket testing in a completely isolated village of roughly 3000 people in northern Italy saw the number of people with covid-19 symptoms fall by over 90% within 10 days.
Vo’Euganeo, 50 km west of Venice, was closed off by authorities in mid-February, at which point repeat RNA testing of the entire population began. All those with positive tests were quarantined. The number of people sick from covid-19 fell from 88 to seven …