Last year, around 10, Shanghai Changshuo Technology Co., Ltd. arranged a COVID-19 vaccine. I don't know if it's Chinese medicine or Kexing. The current situation is Alipay.

Last year 10, people who went abroad should have been vaccinated before mass vaccination. At that time, many vaccine data had not yet come out. Later, a large-scale vaccination appeared. At present, according to foreign data, the effect of vaccination will drop obviously after 6 months, so you only need one shot. Vaccination is recommended. Vaccination sites generally have medical staff who can consult on the spot. If they have met before, it is recommended to get vaccinated.