LONDON - Satellite imagery from Wuhan suggests the new coronavirus was spreading in the Chinese city weeks earlier than Beijing has admitted, according to a new US study.
Researchers at Harvard Medical School analysed commercial satellite images of five Wuhan hospitals and observed what they describe as “a dramatic increase in hospital traffic beginning late summer and early fall 2019”, reports The Times.
This spike in attendance coincided with an increase in Chinese internet searches for symptoms later linked to Covid-19.