Robert Koch — "The principles of hygiene are essential for public health."
The principles of hygiene are essential for public health.
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More from Robert Koch
"The public needs to be educated about the importance of preventing the spread of germs."
"My work in Africa on sleeping sickness was particularly challenging."
"The most important thing in scientific research is to observe carefully and think clearly."
"The microbes are always there; it is the soil that changes."
"The development of effective vaccines is a crucial step in controlling infectious diseases."