The World Health Organization and Public Health England have been widely criticised for their response to the Covid-19 pandemic. This paper looks at what went wrong. The WHO has been accused of being credulous in its dealings with China and giving the world a false sense of security about the...

Infectious diseases depend on intensified social intercourse within large cities, resulting in a super-linear allometric scaling law with city size. But how this scaling relationship changes throughout an evolving pandemic is seldom studied and remains unclear. Here, we investigate allometric...