If the ca199 reaches 400ku/L, you can’t take the vaccine if it’s caused by cancer, but if it’s caused by inflammation, liver disease and other benign diseases, you can wait for your condition to get better, so it’s recommended to further improve the examination to make clear the reason for the elevation of this marker before deciding on the vaccination program. ca199 is a relatively common clinical tumor marker, under normal circumstances remain within the range of 0-40ku/L, such as elevated most often considered to be vaginitis, prostatitis, cirrhosis of the liver, and rectal cancer, pancreatic cancer and other malignant tumors caused by the indicator reaches 400ku/L is very likely to have malignant tumors, so do not recommend vaccination with the new crown vaccine, otherwise it may aggravate the patient’s physical discomfort, and it is difficult to play a preventive effect. Therefore, it is not recommended to receive the new crown vaccine, otherwise it may aggravate the patient’s physical discomfort, and it is difficult to play a preventive effect. It is recommended to improve the CT, MRI and pathological tissue biopsy in time, if it is caused by cancer, need to do a good job of anti-cancer treatment can not be vaccinated; if it is caused by liver disease, inflammation, etc., can be delayed vaccination time, and wait for the condition to improve before vaccination. The ca199 of 400ku/L is already 10 times over the normal range, which needs to be taken seriously for further examination to determine the cause of the disease and to determine the follow-up treatment and vaccination program.