Search results
Results from the WOW.Com Content Network
Smallpox was an infectious disease caused by variola virus (often called smallpox virus), which belongs to the genus Orthopoxvirus. [7] [11] The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, [10] making smallpox the only human disease to have been eradicated to date.
The most common type of smallpox, ordinary, historically has devastated populations with a 30% death rate. The smallpox virus is transmittable through bodily fluids and materials contaminated with infected materials. Generally, face-to-face contact is required for an individual to contract smallpox as a result of an interaction with another human.
Most people became infected during their lifetimes, and about 30% of people infected with smallpox died from the disease, presenting a severe selection pressure on the resistant survivors. [ 29 ] In northern Japan, Ainu population decreased drastically in the 19th century, due in large part to infectious diseases like smallpox brought by ...
The symptoms of smallpox are rash on the skin and blisters filled with raised liquid. [ citation needed ] The disease killed an estimated 400,000 Europeans annually during the 19th century and one-third of all the blindness of that time was caused by smallpox. 20 to 60% of all the people that were infected died and 80% of all the children with ...
One Native tribe majorly affected by the smallpox epidemic was the Mandan tribe. The Mandans traditionally lived along the Missouri River. They had an extraordinarily rich culture, due to them hosting many European and American travelers. The Mandan villages consisted of 12 to 100 lodges and were well organized with a hierarchy of leaders.
They were sold at the extremely high price of five guineas, and Haygarth set out to show that the high cost was unnecessary. He did this by comparing the results from dummy wooden tractors with a set of allegedly "active" metal tractors, and published his findings in a book On the Imagination as a Cause & as a Cure of Disorders of the Body .
Dr. Melamed says that coughing, fever, chills and muscle aches are all common symptoms of pneumonia. "The symptoms of pneumonia can vary widely depending on the patient's age, other conditions ...
[14] [5] The procedure Timoni called inoculation involved drying pus from a smallpox patient and rubbing or scraping it into a healthy person's skin, giving them a mild case of pox that conferred lifetime immunity. [15] Mather wanted to prove variolation was a relatively safe and effective procedure to protect people against smallpox.