Obesity elevates the risk of falling seriously ill with Covid-19 and increases the chances of dying by almost 50%, a new study suggests. The meta analysis, a collaboration between University of North Carolina, Saudi Health Council and World Bank, stated that this may also make future vaccines against Covid-19 less effective. This is based on the assessment that vaccines against flu are not as effective in those with a BMI higher than 30. Obesity is known to co-exist with other conditions like diabetes and heart disease, which may lead to a severe form of the novel coronavirus. The study concluded that people with a BMI of over 30 were 113% more likely to be hospitalised while among them 74% were more likely to be admitted to the ICU. Risk of dying from Covid-19 was 48%. The authors urged governments to push for food policies that promote good health to ensure citizens remain safe. A high BMI leads to insulin resistance and inflammation that may make it harder to fight infection.