Top 10 Most Contagious Illnesses

Smallpox

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Far more under the control of humanity than in eras past, smallpox has been eradicated in its human form officially since 1979- despite this however; many countries continue to implicate required vaccination in way of precaution from the illness. Notorious in many parts of the world, the disease was known for its viral tendencies- spreading easily amongst humans and causing an uncountable number of epidemics throughout our history. Localizing in the blood vessels of the skin, mouth and throat- side effects are primarily maculopapular rashes and blistering of the skin- though the ailment was also known to frequently cause blindness and of course usually ended with fatality.