no need. Those who return to Taiyuan from other provinces need to carry negative nucleic acid test certificates within 48 hours, and return (arrive) passengers from low-risk areas and counties (streets and towns of municipalities directly under the Central Government) with risk of spillover within 7 days, and implement "3-day home health monitoring +3 times of nucleic acid". Houma is located in Linfen City, Shanxi Province, which is an escrow county-level city and belongs to Shanxi Province, so there is no need for isolation. Houma is a national garden city, a national health city, a national double-support model city, a national ecological demonstration zone, a famous green city in China, a model city of environmental protection in Shanxi Province and a civilized and harmonious city in Shanxi Province.