Science and medicine have evolved drastically over time and have had both positive and negative effect on mankind. In ancient times bacteria and viruses exist on their own without being engineered, altered, or created but with the development in the field of medicine, scientist have found some ways of creating these microorganisms some of them which are very potent in their action, Mainly for the purpose of understanding how they behave and the mechanism in which they can act and transmit disease.

Horsepox

                                          Photo credit: drugtargetreview.com

Scientists at the University of Alberta have created horse pox, a lethal virus closely related to the equally deadly smallpox. Unlike smallpox, horsepox does not affect humans and is only fatal to horses.

The scientists created the virus during a six-month study sponsored by pharmaceutical company Tonix. The researchers purchased DNA pieces via mail order and arranged them to form the virus. The entire project was not expensive. The DNA pieces used to create the virus cost just $100,000.

The study caused a dilemma at the time it was revealed. Other scientists were concerned that governments or even terrorists could use the knowledge to create smallpox virus for biological weapons. A smallpox epidemic could become deadly for us today. We no longer get vaccinated for it because we eradicated the disease in 1980.

The researchers clarified that they created the virus because they wanted to develop improved smallpox vaccines. Tonix later revealed that it had produced a smallpox vaccine with the horsepox virus.

Other scientists say that the researchers could have extracted horsepox from wild horse populations instead of creating it from scratch. Tonix said they would have done just that if they had known they had natural access to the virus.

However, lead researcher David Evans said they recreated the virus because Tonix would have been unable to commercialize the horsepox virus taken from the wild.

Black Death

                                                                 Photo credit: BBC

Between 1347 and 1351, millions of Europeans were afflicted with a mysterious disease that killed over 50 million people. Today, we know this disease is the Black Death, which is caused by the Yersinia pestis bacteria. Although the Black Death is still around, it is not as potent as it used to be.

A few years ago, researchers from several schools, including the University of Tubingen in Germany and McMaster University in Canada, recreated the deadly bacteria from DNA samples extracted from the teeth of a victim who died during the plague. They got only 30 milligrams of the bacteria from the teeth, but that was enough to recreate it.

As a result, researchers confirmed the original bacteria’s relationship to the Black Death around today. Some scientists had claimed that the bacteria were of different strains, but they are now confirmed to be the same. The one we have around today only became less deadly after it mutated.

SARS 2.0

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Severe acute respiratory syndrome (SARS) is a lethal virus. More than 700 people were killed during a SARS epidemic that infected 8,000 people in 29 countries between 2002 and 2003. Now, scientists have made it deadlier.

The new mutant SARS virus was created by a group of researchers led by Dr. Ralph Baric of the University of North Carolina. They call it SARS 2.0. The researchers developed the virus by adding some protein to the naturally occurring SARS. SARS 2.0 is immune to vaccines and treatments used to cure the naturally occurring SARS virus.

The team said that the research was necessary because the natural SARS virus could mutate and become immune to our vaccines. By creating a deadlier and mutated virus, we could develop stronger vaccines that will save us from a more lethal SARS epidemic—that is, if the natural SARS ever mutates.

However, other scientists are concerned because the SARS 2.0 that is supposed to save us from a deadly SARS epidemic could start that epidemic if it ever escapes from the lab.

Phi-X174

                                               Photo credit: Fdardel

Phi-X174 is another artificial virus we have produced in laboratories. It was created by researchers at the Institute of Biological Energy Alternatives in Rockville, Maryland. The researchers modeled the artificial virus after the natural phiX virus. PhiX is a bacteriophage, a category of viruses that infect and kill bacteria. However, it has no effect on humans.

The researchers created the artificial virus in 14 days, yet it resembles the natural virus so much that it is impossible to tell them apart. The researchers hope that the new virus is the first step in developing mutant and artificial bacteria that can be used for the benefit of man.

Unnamed Virus

             
                                                               Photo credit: upi.com

Researchers from University College London and the National Physical Laboratory have created an unnamed virus that kills bacteria and behaves like a real virus. Like phi-X174, it is a bacteriophage but deadlier.

The unnamed virus attacks any bacteria around it. Within seconds, it breaks into smaller parts that attach and create holes on the bodies of the bacteria. The holes quickly become larger, forcing the bacteria to leak their contents. The bacteria die soon after.

Despite its scary potency, the unnamed virus is not dangerous to humans and did not attack human cells during tests. However, it could enter human cells just like natural viruses. Researchers hope the results will be used to treat and study bacterial diseases in humans. The virus could also be used to alter the human gene.

Bird Flu

                                                  Photo credit: bigthink.com

Some Dutch scientists have created a mutant and deadlier version of the already-lethal bird flu. Natural bird flu is not easily transmitted among humans. However, the researchers altered it so that it could be. To test their new virus, the researchers exposed some ferrets to it. Ferrets were chosen because they had similar bird flu symptoms to humans.

Ten generations later, the already-changed virus mutated again and became airborne. Natural bird flu is not an airborne disease. The study was controversial in the science community. It became even more so when the Dutch researchers attempted to publish the process to create the deadly virus.

Although scientists fear that terrorists could use the study to produce a deadly biological weapon that could kill half the people in the world, the researchers involved say that the study was necessary to allow us prepare for a mutated bird flu epidemic.

H1N1 Virus

                                                   Photo credit: National Geographic

In 1918, the world witnessed the arrival of a deadly flu epidemic. This was the H1N1 virus. By the time it was over, up to 100 million people were dead. The flu caused blood to seep into the lungs of victims. They released blood from their noses and mouths before drowning in the blood inside their lungs.

The flu returned in 2009. But it was less lethal even though it was mutated and deadlier than it should have been. Scientist Yoshihiro Kawaoka took samples of the mutated strain that caused the 2009 epidemic and used it to create a deadlier strain that was resistant to vaccines. This strain was similar to the one that caused the 1918 epidemic.

Kawaoka was not planning to produce a more lethal version of the flu at the time. He only wanted to create the original version of the flu so that he could study how it mutated and was able to bypass our immunity. The deadly virus is stored in a lab and could become fatal if ever released.