Smallpox communicability

The World Health Organization (WHO) was established on April 7, 1948. It is a special agency of the United Nations (UN) and is very concerned with international public health. Since it started, the organization has had a leading role in the eradication of smallpox. Its current focus includes communicable diseases like HIV/AIDS, Ebola, tuberculosis, and malaria. Other areas of interest include non-communicable diseases, development and aging, nutrition, food safety, substance abuse, and occupational health (which can be affected by contaminants at the workplace). This chapter describes the World Health Organization and discusses its standards (acceptable limits of various contaminants present in the air, water, etc.), especially in regards to the heavy metals and several other metallic materials. 

Communicable Disease Surveillance Center, Public Health Laboratory Service (England). 1978. Smallpox in Birmingham. Brit. Med. J. 2 837. 

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