Weak spermatozoa can be vaccinated normally with the New Crown vaccine. Weak spermatozoa is a decrease in the viability of male spermatozoa. Weak sperm is mainly due to chromosomal abnormalities, endocrine or reproductive system abnormalities. Often, they are in good physical condition with normal function of all organs and can be vaccinated with the New Crown vaccine. However, you need to observe for half an hour after vaccination to make sure that you are not feeling unwell before leaving. The New Crown vaccine is a relatively simple and efficient method of preventing the New Crown virus, and it is also relatively safe. Of course, it is not suitable for people who are allergic to the vaccine, during fever, or with acute medical conditions. To ensure safety, vaccinees should inform the medical staff of their health condition thoroughly before vaccination to avoid accidents.