| P-1 |  
 App P-1  Ref. |  
  https://www.worldometers.info/coronavirus/country/us/ 
 |  
 
  | P-2 |  
 App P-2  Ref. |  
  https://www.cdc.gov/mmwr/volumes/69/wr/mm6928e1.htm 
 |  
 
  | P-3 |  
 App P-3  Ref. |  
  https://www.ahajournals.org/doi/pdf/10.1161/CIRCULATIONAHA.120.047659 
 |  
 
  | P-4 |  
 App P-4  Ref. |  
  https://www.covid19treatmentguidelines.nih.gov/immune-based-therapy/immunomodulators/corticosteroids/ 
 |  
 
  | P-5 |  
 App P-5  Ref. |  
  https://www.savoryliving.com/coronavirus-eat-to-reduce-inflammation-and-boost-immunity 
 |  
 
  | P-6 |  
 App P-6  Ref. |  
  https://www.webmd.com/lung/news/20200714/why-obesity-may-stack-the-deck-for-covid-19-risk 
 |  
 
  | P-7 |  
 App P-7  Ref. |  
  https://source.wustl.edu/2007/03/belly-fat-may-drive-inflammatory-processes-associated-with-disease/ 
 |  
 
  | P-8 |  
 App P-8  Ref. |  
  https://www.obesityaction.org/community/article-library/obesity-and-the-immune-system/ 
 |  
 
  | P-9 |  
 App P-9  Ref. |  
  https://www.express.co.uk/life-style/diets/1284479/weight-loss-keto-diet-plan-burn-belly-fat#:~:text=A%20well%20balanced%20ketogenic%20diet,to%20do%20long%20intense%20cardio. 
 |  
 
  | P-10 |  
 App P-10  Ref. |  
  https://www.healthline.com/nutrition/clean-keto#1 
 |