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.

Après la piqûre infectieuse, une période d’incubation de 1 à 6 jours précède les symptômes qui varient selon l’âge du patient:
After the infectious bite, an incubation period of 1–6 days precedes symptoms which tend to vary with the patient’s age:

La vaccination HBV est actuellement le moyen le plus efficace de prévenir l’infection par le virus HBV
HBV vaccination is currently the most effective way to prevent HBV infection

Le changement climatique est attribué à des processus naturels et aux activités de l’homme qui modifient les conditions atmosphériques.

Climate change is ascribed to natural processes and human activity altering atmospheric conditions.