Mutation would do it, so would demographic differences, level of treatment, who knows. Data out of South Korea indicate a similar CFR as the cruise ship. https

Mutation would do it, so would demographic differences, level of treatment, who knows. Data out of South Korea indicate a similar CFR as the cruise ship. https://mobile.twitter.com/HelenBranswell/status/1235211584600932352 https://mobile.twitter.com/HelenBranswell/status/12352115846...