unnecessary.
taking Heilongjiang province as an example, the municipal (prefecture) headquarters and relevant provincial units should play the role of big data, and conduct a comprehensive investigation on those who have been to wholesale markets such as Beijing Xinfadi, Jingshen Seafood, Shunxin Shimen, Huairou Wanxing, Pinggu Dongsi Canal and Chaoyang Songyu Dongli since May 31, as well as those who have arrived and returned to our province in middle and high-risk areas in Beijing, and report the investigation to the epidemic prevention and control group of the provincial headquarters before 17: 11 every day.
since may 31th, the quarantine control measures have been implemented for those who arrive in or return to the province from Beijing. For those who have lived in wholesale markets such as Beijing Xinfadi and have a history of contact in middle and high-risk areas, the control measures of "14 days of centralized isolation medical observation +7 days of home isolation medical observation +4 times of nucleic acid detection (day 1, day 3-5, day 13 and day 21) +1 times of serum antibody detection" shall be adopted.
Extended information:
Relevant requirements of epidemic rebound prevention and control measures stipulate:
1. Focus on imported seafood and other aquatic products and their products, and focus on all kinds of food centralized trading markets, professional refrigerated warehouses, shopping malls and supermarkets, and catering service units that use a lot of aquatic products, and comprehensively investigate food safety risks.
2. Citizens should always maintain personal protection awareness, wash their hands frequently, often ventilate, wear masks in crowded places and keep a safe social distance; In the food processing process, raw food is cooked separately, cooked thoroughly, and cold food is not eaten to avoid food-borne diseases and food safety incidents.
Xinhuanet-Heilongjiang Province implemented prevention and control measures to deal with the epidemic rebound in key areas such as Beijing.