- The cheap, generic steroid drug Dexamethasone reducing inflammation reduced death rates by around a third among those with the most severe cases of infection, see https://www.recoverytrial.net/files/recovery_dexamethasone_statement_160620_v2final.pdf
- People are most infectious immediately before the outbreak of symptoms. Active case finding and isolation in conjunction with comprehensive contact tracing and quarantine is required: https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(20)30471-0/fulltext
- The risk for severe illness was 45% higher for people with type A blood than those with other blood types. It appeared to be 35% lower for people with type O, https://www.nejm.org/doi/full/10.1056/NEJMoa2020283?query=featured_home
- Israeli researchers have developed a reusable mask which can be heated up to 70°C to kill viruses within 30 minutes.