claim: hydroxychloroquine appears to prevent covid-19
evidence_1: the additional data we have today provides strong evidence that hydroxychloroquine offers no benefit in preventing people developing covid-19 with a 14-day treatment course. the results were first presented at idweek 2020, the infectious disease society of america's annual scientific meeting, saturday, oct. 24.", "people who have had close contact with people with confirmed covid-19 infections who took hydroxychloroquine were just as likely to get covid-19 as were those who received a placebo, according to a preliminary data analysis from a large randomized, controlled trial.", 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  "media contact: susan gregg - sghanson@uw.edu, 206.390.3226 getty images a careful look at hydroxychloroquine finds it ineffective in protecting exposed people from contracting covid-19.")