In this task, you are given one French sentence. The major part of the sentences talk about health-related topics, but some of the them describe an organization and its activities. Your job is to translate the given sentences into English.

Des antibiotiques sont souvent inutilement prescrits pour des infections virales, contre lesquelles ils n’ont aucun effet.
Antibiotics are often unnecessarily prescribed for viral infections, against which they have no effect.

L’une des principales voies de transmission de la maladie est le contact direct avec des patients infectés ou l’exposition à des aliments ou de l’eau contaminés par ces derniers.
A major pathway of disease transmission is personal contact with infected patients or exposure to food or water contaminated by them.

ne pas laisser s’installer un "chaos" en matière d'information;

Do not allow information chaos;