Users' questions

Can you get smallpox by touching someone?

Can you get smallpox by touching someone?

Smallpox normally spreads from contact with infected persons. Generally, direct and fairly prolonged face-to-face contact is required to spread smallpox from one person to another. Smallpox also can be spread through direct contact with infected bodily fluids or contaminated objects such as bedding or clothing.

How is the vaccinia virus transmitted?

Vaccinia virus can be transmitted from a vaccine recipient to other persons through direct (skin-to-skin) contact via material from the unhealed vaccination site or through indirect contact by means of fomites (4–6).

What does smallpox do to children?

At first a person may have flu-like symptoms such as high fever, tiredness, headaches, and backaches. Within 2 to 3 days after symptoms start, a rash develops that typically affects the face, legs, and arms. It starts with red marks that become filled with pus and crust over.

What is smallpox caused by and how is it transmitted?

Smallpox is caused by infection with the variola virus. The virus can be transmitted: Directly from person to person. Direct transmission of the virus requires fairly prolonged face-to-face contact.

Will smallpox go away?

There is no cure for smallpox, but vaccination can be used very effectively to prevent infection from developing if given during a period of up to four days after a person has been exposed to the virus. This is the strategy that was used to eradicate the disease during the 20th century.

What does vaccinia virus cause?

The history of the vaccinia virus is that of smallpox, a serious illness characterized by the eruption of small pocklike lesions throughout the skin and internal organs. This is distinct from the great pox of syphilis. The variola virus causes smallpox and may have begun infecting humans approximately 10,000 years ago.

What is disease transmission rate?

2.1 Model of disease transmission β(t) transmission rate, the number of infections per unit time per susceptible per infected.

How many people have died from smallpox?

Today, the virus only exists in two secure laboratory facilities in the U.S. and Russia. One of history’s deadliest diseases, smallpox is estimated to have killed more than 300 million people since 1900 alone.