• Covid-19 vaccine booster dose: great uncertainty over its value in the general population (November 2021) > HERE
   
• Adverse effects of messenger RNA covid-19 vaccines as of mid-2021 (November 2021) > HERE
   
• "The Sars-CoV-2 Delta variant: how effective are covid-19 vaccines against this strain?" (October 2021) > HERE
  
  
• "Covid-19 vaccines: glaring inequality" (October 2021) > HERE
   
• "Viral vector covid-19 vaccine ChAdOx1-S (Vaxzevria°) and covid-19. Efficacy in the short term, but a risk of rare, sometimes fatal, thrombosis" (September 2021) > HERE
   
• "Covid-19 drugs and vaccines: big money and winning alliances" (June 2021) > HERE
   
• "Waste in covid-19 clinical trials" (June 2021) > HERE
    
• "Covid-19 vaccine Ad26.CoV2S (by Janssen): as with the other covid-19 vaccines, effective in the short term but unknowns remain" (23 March 2021) > HERE
   
• "The AstraZeneca covid-19 vaccine: British epidemiological data on the vaccination of older adults, and reassuring pharmacovigilance data" (15 March 2021) > HERE
  
  
• "Messenger RNA covid-19 vaccines: Prescrire's in-depth analysis as of end February 2021 (2 March 2021) > HERE
  
  
• "Covid-19 and ivermectin: many trials, few results, no proven efficacy " (13 February 2021) > HERE
  
  
• "The ChAdOx1 nCoV-19 covid-19 vaccine from AstraZeneca: great uncertainty over its efficacy" (29 January 2021) > HERE
  
  
• "The covid-19 messenger RNA vaccine from Moderna: as with the tozinameran vaccine (Comirnaty°, Pfizer/BioNTech), limited data and unanswered questions" (6 January 2021) > HERE
   
• "The covid-19 messenger RNA vaccine tozinameran (Comirnaty°, from Pfizer and BioNTech) in elderly patients: limited data, many uncertainties" (23 December 2020) > HERE
   
• "Covid-19 and vitamin D: too uncertain" (15 December 2020) > HERE
   
• "Evaluation of covid-19 vaccines: the questions to ask" (20 November 2020) > HERE
   
• "Covid-19 patients who are not hospitalised: anticoagulation is rarely justified" (24 September 2020) > HERE
   
  
• "Proton pump inhibitors: increased risk of severe covid-19" (15 September 2020) > HERE
   
• "Hydroxychloroquine in covid-19: no proven efficacy, including in less severe forms of the disease" (24 July 2020) > HERE
   
• "Covid-19: remdesivir (Veklury°) authorised in the European Union, yet much remains unknown or uncertain" (13 July 2020) > HERE
   
• "Covid-19 and severe breathing problems: dexamethasone reduced mortality in one trial" (24 June 2020) > HERE
   
• "Lack of access to drug evaluation data: a recurrent problem, not confined to covid-19" (8 June 2020) > HERE
   
• "Covid-19 and  hydroxychloroquine  (Plaquenil°): new data  show no evidence of efficacy"  (16 April 2020) > HERE
   
• "New data on the  cardiac adverse effects  of the combination of  hydroxychloroquine  (Plaquenil°) with azithromycin (Zithromax° or other brands)" (16 April 2020) > HERE
  
  
• "Covid-19 and hydroxychloroquine (Plaquenil°): still no conclusive results" (15 April 2020) > HERE
  
  
• "Covid-19 and hydroxychloroquine: uncertainties and unanswered questions" (2 April 2020) > HERE
  
  
• "Covid-19 and hydroxychloroquine: caution" (30 March 2020) > HERE
   
• "Covid-19 and drug trials: what to make of the initial results?" (23 March 2020) > HERE
  
  
• For more information in French, see www.prescrire.org > Dans l'actualité
  

©Prescrire October 2021

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