Hong Kong Chief Executive Carrie Lam Cheng Yuet-ngor said there has been an 80-90 per cent drop in the city’s Covid-19 caseload. Lam said the assessment was based on results of three days of citywide voluntary mass testing conducted April 8-10, 2022. Lam said 3,142 positive cases were found during the exercise, and over 60 per cent of the people infected were asymptomatic.  Source: Hong Kong Information Services Department