Legal analysis: complain to the health department. It is illegal for hotel staff to work on the job without health certificate. You can report to the district and county health administrative departments.
Legal basis: Food Hygiene Law of the People's Republic of China
Article 26 Food production and marketing personnel must have a health examination every year; Food production and marketing personnel who have joined the work newly or temporarily must have a health examination and obtain a health certificate before they can take part in the work.
article 47 whoever, in violation of the provisions of this law, engages in food production and marketing without obtaining a health certificate, or fails to transfer the production and marketing personnel who are not allowed to touch directly imported food due to illness, shall be ordered to make corrections and may be fined not more than 5,111 yuan.
article 41 the administrative punishment prescribed in this law shall be decided by the health administrative department of the local people's government at or above the county level. Other organs exercising the power of food hygiene supervision as stipulated in this Law shall, within the scope of their functions and duties, make administrative punishment decisions in accordance with the provisions of this Law.