They did say, within 24h of that tweet, that they have not ruled out human to human transmission: https://www.euronews.com/2020/01/15/china-says-it-s-possible-n

They did say, within 24h of that tweet, that they have not ruled out human to human transmission: https://www.euronews.com/2020/01/15/china-says-it-s-possible-new-virus-could-spread-between-n1116066 https://www.euronews.com/2020/01/15/china-says-it-s-possible...