What viral disease has been eradicated?

Widespread immunization and surveillance were conducted around the world for several years. The last known natural case was in Somalia in 1977. In 1980 WHO declared smallpox eradicated – the only infectious disease to achieve this distinction.

When was the last time a virus was eradicated?

Smallpox Virus In 1980, the World Health Assembly declared smallpox eradicated (eliminated), and no cases of naturally occurring smallpox have happened since.

Why is smallpox eradicated?

Several biological reasons favored the eradication of smallpox, the most important of which were probably that recurrent infectivity did not occur, that there was no animal reservoir, and that an effective stable vaccine was available.

Is polio eradicated?

Wild poliovirus has been eradicated in all continents except Asia, and as of 2020, Afghanistan and Pakistan are the only two countries where the disease is still classified as endemic….Timeline.

Is chickenpox eradicated?

Varicella vaccine has been in the market since 1995 and new studies show that it has nearly wiped out deaths from chickenpox in the United States. With only two diseases officially fully eradicated in the world, this is good news and signs of progress in the bio tech community.

Can mumps be eradicated?

But mumps has never been eliminated, and that’s different from the measles and rubella components of the MMR vaccine. Measles was eliminated from the United States in 2000, and the only reason measles has come back in this country is because a critical number of parents have chosen not to vaccinate their children.

Are measles eradicated?

Measles was declared eliminated from the United States in 2000 by the World Health Organization due to the success of vaccination efforts. However, it continues to be reintroduced by international travelers, and in recent years, anti-vaccination sentiment has allowed for the reemergence of measles outbreaks.

Is diphtheria eradicated?

According to the CDC, a disease is categorized as eliminated when it is no longer circulating in a specific region. Measles, rubella, mumps, diphtheria and polio have all been eliminated in the U.S., largely due to the introduction of vaccination programs in the United States in the 1970s.

Can shingles be eradicated?

Shingles is caused by the same virus that causes chickenpox. That virus, called varicella-zoster, is not eradicated from the body when a person recovers from chickenpox, but instead lies dormant in the nervous system and can be reactivated if the immune system weakens.

Is German measles eradicated?

There are ongoing efforts to eliminate the disease globally. In April 2015 the World Health Organization declared the Americas free of rubella transmission.