WebNov 10, 2024 · Smallpox is an acute contagious disease caused by the variola virus, a member of the orthopoxvirus family. It was one of the most devastating diseases known to humanity and caused millions of deaths before it was eradicated. It is believed to have existed for at least 3000 years. The smallpox vaccine, created by Edward Jenner in 1796, … WebSmallpox is a disease that is caused by the variola virus. It is an infectious (also known as ‘communicable’) disease meaning it can spread from one person or animal to another, …
Monkeypox - WHO
WebApr 4, 2024 · Smallpox was the “most fearsome disease known” in the eighteenth century. Its fatality rate was between 20 and 30 percent. Caused by the Variola virus, it would be contained at last by vaccination after the very last years of the century. Before that, the riskier method of inoculation, also known as variolation, was used. WebSmallpox is extremely infectious and is spread from one person to another by infected saliva droplets. Exposure may come from face-to-face contact, airborne spread (coughing or sneezing), or through direct contact with contaminated materials. People with smallpox are most infectious during the first week of illness because that is when the ... income tax challan no itns 280
Smallpox - Wikipedia
WebDec 5, 2016 · Smallpox patients are considered infectious from the time the first oropharyngeal lesions appear, throughout the course of the disease, until the last scab … WebSmallpox is a highly contagious disease caused by the smallpox virus, an orthopoxvirus. Case fatality rate is about 30%. Natural infection has been eradicated. The main concern … WebNov 17, 2024 · Smallpox is a highly infectious disease caused by a virus. Its hallmark symptom is a distinctive rash that changes in appearance as the disease progresses. (1,2) incfile help number