A group of Jinyun People’s Hospital, China has reported a relationship between covid-19 and obesity.
https://eurjmedres.biomedcentral.com/articles/10.1186/s40001-020-00464-9
Statistical analysis through 12,591 COVID-19 patients showed that the BODY Mass Index (BMI Index) in humans infected with covid-19 was higher than that of mild individuals (MD (average difference in BMI) of 2.48 kg/m2, 95% [2.00 to 2.96 kg/m2]CI). In addition, obesity was shown to be more likely to develop severer disease in the pathology of COVID-19, for example, ICU treatment (OR = 1.57, 95% [1.18–2.09]CI, ECMO use (OR = 2.13, 95% [1.10–4.14]CI).