A conservative religious group's gatherings have emerged as coronavirus hotspots in Malaysia, India and now Pakistan, with authorities tracking people who attended an event with as many as 70,000 worshipers that's responsible for more than a quarter of all cases in the South Asian nation.

from Times of India https://timesofindia.indiatimes.com/world/rest-of-world/tablighi-jamaats-mass-gatherings-across-asia-spark-coronavirus-clusters/articleshow/75264112.cms