Generally, it will not lead to discoloration of the health code, but the vaccination status will be displayed on the health code. There are new changes in electronic health codes. In addition to nucleic acid detection information query and recent 14-day trip query, the new function: vaccination query.
Free vaccines have been popularized in novel coronavirus. Now it is more convenient and faster to query vaccination information directly on the health code.
However, it should be noted that COVID-19 vaccination certificate cannot replace nucleic acid report. Vaccination can reduce the risk of infection to some extent, but the protective effect of any vaccine can not reach 100%. When necessary, nucleic acid testing should be carried out in conjunction with relevant departments.
COVID-19 vaccine is effective. At present, all clinical vaccines are inactivated vaccines, which will produce protective antibodies after inoculation. Once this antibody exists in human body, it can kill the virus and effectively reduce virus infection.
Although COVID-19 vaccine injection has certain effect, it also has side effects. Generally, there are few side effects after injection, all of which are slight side effects, and it will not affect the human body after active treatment. Common side effects include pain at the injection site, nausea and vomiting, fever and headache.