See ESC right:

Health measures, preventative

Relevant ICESCR Articles:

12(1): The States Parties to the present Covenant recognize the right of everyone to the enjoyment of the highest attainable standard of physical and mental health.

12(2)(b): The steps to be taken by the States Parties to the present Covenant to achieve the full realization of this right shall include those necessary for:
(b) The improvement of all aspects of environmental and industrial hygiene;

12(2)(c): The steps to be taken by the States Parties to the present Covenant to achieve the full realization of this right shall include those necessary for:

(c) The prevention, treatment and control of epidemic, endemic, occupational and other diseases;