Smallpox Comeback: What Is It?

2016Global warming thawed the graves of anthrax victims, reactivating dormant spores. The virus spread to a nearby town, infecting about 100 people and killing a child and thousands of reindeer. Could smallpox do the same? Scientists watch the possibilities closely.

In the 1890s, 40% of Kolyma, Siberia, died from smallpox. Now, those graves face melting as climate change thaws the permafrost. Just as anthrax spores escaped, smallpox spores could follow. Scientists found smallpox DNA, not the live virus, but the risk remains.

Smallpox has not appeared since 1977.There is a reason to worry.North Korea might use the virus for bad goals. Though North Korea does not legally hold the virus (only the US and Russia do), experts are sure they could.North Korea has the virus.North Korea sends scientists for degrees to build weapons of mass destruction. North Korea denies a program, but in 2016, Kim Jong-un showed a new medical lab on TV. The American government saw machines for making these weapons.

Smallpox spreads through the air. You do not need to touch lesions to get infected. You only need to breathe air where someone coughed to risk infection.

The world should worry about more than just North Korea.Russia has some smallpox scientists.may have joined Iran, which has tense relations with the US.This happened in the late 1990s.A Russian defector told the US government about Russia's biological warfare with smallpox and anthrax. Russia supposedly did this because it thought the US was doing the same thing.

If you get smallpox, your survival chances are not high.One-third of those infected die.Hundreds of millions died from the virus. It sometimes wiped out whole cities or populations. The Aztecs, Incas, Aborigines, and Native Americans were heavily affected by smallpox. By 1800, 72 million Native Americans existed when Columbus arrived in America; only 600,000 remained.600,000Smallpox brought from overseas caused much of this.

Do not think only remote Russians fear smallpox returning.In 2016, construction workers got smallpox.In 2016, people in Queens, New York found an iron coffin. Inside, they saw a mummified body showing the telltale bumps of smallpox. Though the virus was not active in the mummy, researchers still think a mummy kept cold could hold a live virus.

Officially, there aretwo stocks of smallpoxThe Center for Disease Control and Prevention in Atlanta, Georgia, holds one stock. The VECTOR laboratory in Russia holds the other. Unofficially, other countries, like North Korea, likely got the virus.

In 2014, theNational Institute of Health discoveredSome forgotten live strains of the smallpox virus. They moved these to the CDC facility. If you forgot laundry in the washer, don't worry—you did not forget a deadly live virus.

The World Health Assembly has delayed the decision to destroy the two official smallpox stocks for over 30 years. Scientists want to keep them. Having the live virus access could serve as a key antidote if another outbreak or biological warfare happens.

If smallpox is used later to attack a community, itwouldn't be the first time.In the 1760s, a British general told his troops to givesmallpox-infested blanketsNative Americans received these blankets. Since Native Americans had no prior exposure to the disease, they had no resistance like many Europeans. Thus, exposure to smallpox caused even more deaths. Lord Jeffrey Amherst gave these orders, and his actions caused Amherst College to change its nickname from Lord Jeffs to the Mammoths in 2017.

In 2017, aCanadian researcher recreatedhorsepox in a lab for $100,000. Horsepox is not dangerous to people, but it is related to smallpox, like cowpox. Scientists state this ability to recreate the virus always existed. This new research showed how easy it was to get the DNA needed for potential biological weapons. A virologist stated a "reasonably equipped undergraduate lab" could make this research.

In 2017, StemImmune, Inc., based in San Diego, mixed the smallpox vaccine with stem cells to treat tumors. The FDA disliked this method because there is no science supporting it. Although no one risked getting smallpox, giving a vaccine variant to cancer patients could cause heart swelling. The lab argued the vaccine had been used in cancer trials before, but mixing it with stem cells, as StemImmune did, lacked approval. US marshals seized the drugs, and the company agreed to work with the FDA on developing its stem cell therapy for cancer.

It is very unlikely that you werevaccinated against smallpoxThe US stopped vaccinating people against smallpox in 1972, partly due to low risk and partly because the vaccine carried risks.The US stopped vaccinating people against smallpox.The US stopped vaccinating people against smallpox in 1972, a few years before the WHO declared the virus completely eradicated. This means today's citizens, just like native populations ravaged by smallpox, have no immunity to the disease.Today's citizens have no immunity to the disease.However, an emergency stockpile of smallpox vaccines exists.An emergency stockpile of smallpox vaccines exists.An emergency stockpile of smallpox vaccines does exist.

Researchers continue finding better, safer, and more effective ways to fight the virus, even though smallpox has not appeared since 1977.TPOXX.Siga developed TPOXX, an intravenous drug that showed success in animal studies. Siga gave two million doses of the drug to the US smallpox vaccine stockpile. Siga is now making an oral version of TPOXX.

Many diseases are gone or rarely seen in the US, but only one has been eradicated worldwide.Only one disease has been eradicated worldwide: smallpox.Why smallpox and not diseases like yellow fever?

Smallpox only affects humans. Other diseases, like yellow fever, can hit animals or spread through mosquitoes. Plus, smallpox shows physical symptoms right after infection. Other diseases have a long incubation time; someone can infect others without showing symptoms because they do not know they are sick. These reasons made eradicating smallpox with vaccines easier.

The World Health Organization officially started its mission.The World Health Organization officially embarked on a mission.The WHO started eradicating smallpox in 1966, declaring the disease gone in 1980 (the last case was in Somalia in 1977). To fight it, WHO used "ring vaccination." Ring vaccination identifies anyone possibly exposed to an infected person and vaccinates them, effectively "ringing in" those who could spread the disease.WHO workers showed people pictures of smallpox rashes and offered rewards for those who identified smallpox cases.WHO workers offered rewards for those who identified smallpox cases.

Up until 2017,Edward Jenner thought the smallpox vaccine came from cowpox. That idea changed. A milkmaid told 13-year-old Jenner she avoided smallpox because she had cowpox. Jenner tested this idea. He injected an eight-year-old boy with cowpox, then injected him with smallpox. Jenner injected the boy 20 times. Smallpox blisters never formed. Cowpox is close to smallpox. Humans cannot get cowpox, but they build smallpox immunity using small doses—vaccines—of cowpox.

Before Jenner's vaccine, people used variolation to fight smallpox. Variolation involved injecting dried smallpox scabs into people. Variolation carried side effects and dangers. Jenner named the new treatment variolae vaccinae, meaning "smallpox of the cow." A 2017 study found Jenner did not develop the vaccine from cowpox; he used horsepox, which also affects cows.