There are generally two ways to check the effectiveness of the vaccine: a. Check your own antibody level Go to a hospital qualified for rabies antibody testing about 15 days after the full course of human rabies vaccination and have 2 ml of blood taken on an empty stomach to test whether antibodies are produced; if the test result is positive, it means that the body has produced anti-rabies antibodies, indicating that the vaccination is effective. It also means that the vaccine was effective in preventing rabies exposure (if it contains rabies virus). Second, check the vaccine itself There are very limited institutions that can test for rabies antibodies, so we can also determine this by checking the vaccine itself. Check the vaccination records and compare the vaccine manufacturer and lot number to see if the vaccination is a problematic vaccine. Of course, you can also consult the vaccination unit. If some of the vaccines in the vaccination book only show the batch number but not the manufacturer, you can check the official website of the China Academy of Food and Drug Administration. (http://www.nifdc.org.cn/CL0108/) Click to find the number in the vaccination record book. At the bottom of the page, there are also past biologics batch issues, so click on the corresponding year to find the batch records of past vaccines. If there are English letters in the batch number, it is an imported vaccine, while a pure number is a domestic vaccine. However, for the time being, we have not found any batch numbers with English letters on the official website mentioned above. For example, the batch number of this vaccine below is “201411077”, the first four digits represent the year, so you need to find the approval status of this vaccine in 2014: the “11077” at the end represents the production time and batch of the vaccine. The “11” represents the month of November, and “077” is not a date, but generally refers to the batch. This vaccine was produced in November 2014, but since it takes some time from the production of the product to the inspection and listing, you need to look for the batch to be publicized 2-3 months later in the public list. This time is not fixed, you can only turn page by page. According to “201411077” in the record book, we found it in the public announcement list from March 16 to March 31, 2015. When you click in, it will show you the manufacturer of the vaccine, as well as the specifications, batch number, lot, and expiration date. Vaccines are a matter of national life and health, so if there is a problem with any batch or type of vaccine, news reports will be pushed to you in time, and local health departments and disease control departments will make corresponding notifications. If you encounter a report of a problematic vaccine and happen to have received it during the corresponding time period, then follow the above method to find out for sure. Be sure to follow the authoritative information released by the authorities or the media to compare and check, and don’t be fooled by the gossip that is used to attract attention.