Mild but Widespread: COVID-19 Infections Rise Again in China

As of May 2025, China is experiencing a moderate resurgence of COVID-19 cases, part of a broader uptick across several Asian countries. This increase is primarily attributed to the emergence of new Omicron subvariants, notably JN.1 and its descendants, such as LF.7 and NB.1.8, which are characterized by higher transmissibility and some ability to evade existing immunity. The COVID-19 test positivity rate in Chinese hospitals more than doubled in the five weeks leading up to May 4, indicating a significant increase in infections. Approximately 83% of severe COVID-19 cases involve individuals aged 65 or older, with over 90% of these patients having pre-existing health conditions. Southern China, including areas like Hong Kong and Taiwan, are experiencing higher infection rates. For instance, Hong Kong reported a positivity rate of up to 11.4%, with a notable increase in severe cases. The surge in China aligns with similar trends in neighboring countries: Singapore: Reported a 28% increase in COVID-19 cases, rising to 14,200 in the week ending May 3. Hospitalizations also increased by approximately 30%. Hong Kong: Experienced its highest percentage of COVID-positive respiratory samples in a year, with 31 severe cases reported in the week ending May 3. Thailand: Saw a significant rise in cases, particularly following the Songkran festival in April, which involved large public gatherings Despite the increase in cases, Chinese health authorities currently assess the situation as manageable: Most new infections are presenting with mild, flu-like symptoms, and there is no significant increase in ICU admissions. Health authorities are closely monitoring the situation and have not indicated the need for large-scale lockdowns or restrictive measures at this time.