COVID-19 vaccine may not be effective for obese people. Why do American experts say this? ? Because the immune response of obese people is poor or even ineffective, many studies by American experts have long shown that many kinds of vaccines are not as effective as normal-weight vaccines. COVID-19 vaccine is also an influenza vaccine, so it is as ineffective as other vaccines for obese adults. The proportion of obese people in the United States is relatively large, and they are also the high-risk group of COVID-19 infection, which is a very terrible event for the United States. At present, the United States is recruiting obese people for testing. According to scientific investigation, the effect of hepatitis B, tetanus and rabies vaccine on obese adults is far lower than that of the general population. This is because obesity can interfere with human immune response, and obese people are particularly vulnerable to infection by pathogens such as influenza and novel coronavirus. For obese adults, the effect of vaccination is not as good as that of people with normal weight, and it may even be a waste of money.

There are three hypotheses about the poor effect of COVID-19 vaccine on obese people. One is that the needle for immunization is not long enough, while the subcutaneous fat layer of obese people is thick, and the needle can't touch the muscle under the fat layer, so the vaccine needs to stay in the muscle to play the best effect. There is also a saying that obese adults are heavier and need to use a large dose of vaccine, so they must use a dose greater than normal weight to be effective.

The last argument is that obese adults are related to the immune system. Obesity can lead to some chronic inflammation, which may hinder the effectiveness of the vaccine. Obesity accounts for one-third of the American population. I'm afraid the only way to make the vaccine effective is to lose weight first. After all, it is difficult to determine the time to wait for a new vaccine for obese people. In addition, losing weight is also good for your health. Obesity can cause many diseases, so the safest way is to lose weight before the new vaccine appears!