Increased COVID-19 testing linked to lower transmissionA Sri Lankan analysis of global COVID-19 intervention measures showed that increased testing had the greatest impact on transmission: a 10-fold increase in the ratio of tests to new cases (TCR) reduced a country's average transmission by 9%.
The study authors suggest that intense testing combined with isolation may be the most effective and least costly strategy for controlling COVID-19.Researchers in yesterday's Health Affairs study compiled online data from 173 countries and territories—accounting for 99% of the world's cases—from March to June when some countries achieved near-elimination of COVID-19.The researchers analyzed data from the Our World in Data (OWID) repository, the