From a The Guardian article (April 9, 2020):

A hundred days after a Chinese government website announced the discovery of a “pneumonia of unknown cause”, it has become clearer that the dynamics behind the virus’s rapid expansion across the globe has relied heavily on such “cluster effects”.

Each of the countries most heavily hit by the pandemic has reported similar stories of social, cultural or religious gatherings where large numbers spent numerous hours in close company – holding hands, kissing, sharing drinks from the same glass – which then turbo-charged the spread of the pandemic.

“Most infections didn’t take place in supermarkets or restaurants,” Streeck said of his preliminary findings. In Heinsberg, his team of coronavirus detectives could find scant evidence of the virus being transmitted via the surfaces of door handles, smart phones or other objects.

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