Public Health and Hygiene: A Students' Manual

active amount animals appears attention authorities bacilli bacteria become birth blood body called cancer carried carriers caused cent century CHAPTER common considerable constitutes contain course dealing death death rate Department diphtheria disease effective entirely epidemic especially examination example experience fact factor fever field frequently germs give given heat human immunity important increased individual infant infection Italy known live matter means measures method milk months mortality mosquito namely nature nursing occur organisms patient period persons physician poisoning population possible practically prevalence preventive problem produce public health pupa recent regarding reported scarlet fever serum Service showed shown skin smallpox spread statistics supply syphilis tion toxin transmitted treatment tuberculosis typhoid typhoid fever United usually vaccine various virus vitamin weeks York City