European CDCがコメント
内容としては下記の通りで、人から人への感染はないものとして取り扱われている
Executive summary
Between 31 December 2019 and 5 January 2020, 59 pneumonia cases possibly associated with a novel coronavirus have been reported in Wuhan, China with a common exposure link to Wuhan’s South China Seafood City market.
The cases showed symptoms such as fever, dyspnoea, and radiological tests compatible with bilateral lung infiltrative lesions. Seven severe cases have been reported, but no deaths. No cases have been reported outside of Wuhan. According to Chinese authorities, no human-to-human transmission could be documented.
Epidemiological investigations including contact tracing activities are ongoing and hygiene- and environmental sanitation activities in the affected market have been carried out in Wuhan.
Three EU airports have direct flight connections to Wuhan and there are indirect flight connections to other EU hubs. Considering there is no indication of human-to-human transmission and no cases detected outside of China, the likelihood of introduction to the EU is considered to be low, but cannot be excluded. However, more epidemiological and laboratory information is needed in order to elaborate a comprehensive assessment of this event and the possible risk for the international spread.
ECDC is monitoring this event through epidemic intelligence activities. For options for response and safety precautions, see ECDC’s threat assessment.
一方台湾のCDCでは武漢肺炎を「厳重特殊伝染性肺炎」とし、第5類法定伝染病とする手続きを開始
第5類法定伝染病は台湾でいうと中東無呼吸症候群（MARS）やエボラ出血熱、黄熱病と同じカテゴリに入る。
なお、日本では指定感染症として、1月28日に指定される。
https://www.mhlw.go.jp/content/10900000/000589748.pdf
なお、日本での法的根拠となる法律は「感染症の予防及び感染症の患者に対する医療に関する法律」で1999年に施行され、2007年に「結核予防法」を統合し、人権意識の高まりから、「人権尊重」や「最小限度の措置の原則」を明記するなどの改正がなされている。