Search results
28 lut 2022 · Smallpox was a severe disease that caused distinctive pustules. It was an epidemic that caused many deaths, but the first vaccine helped eliminate it.
18 sie 2024 · Smallpox continued to kill in many countries in South Asia, Africa, and South America until the 1970s. It remains a vivid memory for many older people alive today. Read more about the history of smallpox and its eradication →
28 cze 2016 · The virus which causes smallpox is contagious and spreads through person-to- person contact and saliva droplets in an infected person’s breath. It has an incubation period of between 7 and 17 days after exposure and only becomes infectious once the fever develops.
Smallpox is an infectious disease that is caused by the variola virus. It spreads from one person to another, either directly or indirectly. The variola virus infects only humans — other animals are unable to catch smallpox.
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.
5 sie 2022 · Causes. Smallpox is caused by the variola virus. The virus can spread: Directly from person to person. You can catch the smallpox virus by being around someone who has it. An infected person can spread the virus when they cough, sneeze or talk. Coming in contact with skin sores also can cause you to get smallpox. Indirectly from an infected person.
8 sie 2023 · Epidemiology. Smallpox is a human disease without animal reservoirs, which became an important factor in its successful eradication. In the late 1700s, Edward Jenner successfully demonstrated that cowpox virus could vaccinate people against smallpox.
