related_tweet: guarantee that an individual will not contact and spread the disease. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  a primary route of transmission of covid-19 is via respiratory particles, and it is known to be transmissible from presymptomatic, paucisymptomatic (presenting few symptoms), and asymptomatic individuals.