The US Center for Disease Control and Prevention (CDC) has said that people who are merely overweight might be at a greater risk of severe COVID19 disease. The agency has recently acknowledged the link between excess weight and severe infection from COVID19. The CDC has issued a warning on its official website saying that nearly two-thirds of people in the US might fall in the high-risk zone of fatal coronavirus infection. As per the CDC data, around 32 percent of Americans are overweight, while nearly 40 percent of people living in the US are obese. The officials have said that obese people are at a higher risk of falling sick due to severe infection. They have warned people saying that the risk of death due to severe COVID19 disease shoots up along with a higher body mass index (BMI).
Experts have informed that people who are overweight have a body mass index of 25 to 30. While people, who are obese have a body mass index of 30 or higher than this. For an instance, a man with 5 feet 11 inches height and 200 pounds weight will be considered overweight. The same man with 25 pounds of excess weight will be considered obese. Experts have said that metabolic alterations linked to excess weight decrease the ability of the immune system to fight against the disease. This plays an important role when it comes to outcomes of the COVID19 disease. Scientists say that physical factors linked to obesity such as reduced lung capacity and sleep apnea are crucial as well, which contribute to severe infection of coronavirus.
A review of 75 studies had shown a strong link between overweight and obese people and the risk of hospitalization related to COVID19. This review had published in August 2020. It had collected a vast data on COVID19 and BMI. Some experts have raised concerns over the development of the COVID19 vaccine. They have been skeptical about whether the vaccine will be effective among people who are dealing with the issues of excess weight and obesity.