This thread is quite encouraging. Argues that reason why we don't have one for other coronaviruses is because of cost-benefit not high enough, rather than tech

This thread is quite encouraging. Argues that reason why we don't have one for other coronaviruses is because of cost-benefit not high enough, rather than technical hurdles. 20% colds caused by 4 different Coronaviruses, so hard to justify making a vaccine that reduces cold risk by a few %. Agree that there is uncertainty though. "Covid is so technically doable we already have vaccines for dog & cow coronaviruses. We’ll definitely make one for covid, trials will be simple since we’ll be specifically trying to prevent Covid, which is only caused by SARS-CoV-2 (not by dozen different viruses)" https://twitter.com/PeterKolchinsky/status/1240498037958545410 https://twitter.com/PeterKolchinsky/status/12404980379585454...