Hong Kong's COVID-19 activity level is at a high level. Experts say it may be due to the emergence of new virus strains.

According to the website of Radio Television Hong Kong on May 17th, the level of activity of the new coronavirus in Hong Kong is at a high level, with an increase in the number of severe cases in children and adults. The chairman of the scientific committee on vaccines to prevent disease under the Centre for Health Protection in Hong Kong, Liu Yulong, believes that the reasons for the outbreak of a new wave of the new coronavirus are very complex, but it is estimated that the main reason may be due to the emergence of mutated virus strains, with sewage monitoring showing that there is a higher prevalence of the KP.3 virus strain.