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History is brimming with the wrath smallpox wrecked on the human race. It was counted as the deadliest disease humans have ever encountered. It used to claim millions of lives worldwide each year. Smallpox is a highly contagious viral disease. It is also known as variola. Luckily due to extensive vaccination against this disease, it has been now completely eradicated. Due to the absence of this virus now this vaccine is not administered because it can be toxic. Only people who are at high risk are recommended to receive this vaccine.
It is known that it used to start with flu-like symptoms after an incubation period of 7-17 days.
Smallpox has an incubation period of 7-17 days during which affected individual faces ni symptoms. After this initial incubation time, symptoms like flu appear and these are accompanied by:
Smallpox is an airborne disease caused by the variola virus. It is highly contagious and it can spread by:
Biggest risk factor associated with smallpox is re-emergence of this disease. Because vaccination for this infection is no more in practice if this disease resurfaces it can be a threat to humanity. It can reappear due to some planned terrorist activity, due to mishandling of viruses kept for research purposes and due to negative effects of human activities on the natural ecosystem.
Smallpox was prevented by the use of a vaccine. Due to the eradication of this disease, it is not administered to the population anymore.
There are two types of smallpox.
This is a less common and less intense form of smallpox. It is reported that only 1% of people affected by this type of smallpox died.
2- Variola major:
History tells us that 30% of people affected by this type of disease passed away. 90% of cases of smallpox were recognized to be of this type.
