A study of a smallpox vaccine that could prove vital in the United States' war on bioterrorism is under way at Stanford Medical Center. The trial tests the potency of the Dryvax vaccine, a 1970s ...

A cluster of variola viruses viewed under an electron microscope. Strains of the variola virus cause smallpox disease. ... Smallpox was perhaps one of the most dangerous diseases on Earth.

Another difference between COVID-19 now and smallpox in the 1970s is the availability of an almost perfect smallpox vaccine, developed in 1796, by the English physician Edward Jenner.

Electron microscope image of the smallpox virus UIG via Getty Images. When the world eradicated smallpox in 1980, ... No one knows exactly how long smallpox can survive under these kinds of ...

**ADVANCE FOR WEEKEND EDITIONS, OCT. 25-26** Theresa Gratsch, a Ph.D. research specialist, expands human embryonic stem cells under a microscope at the University of Michigan Center for Human ...

The Vector facility has been under the microscope before. Fifteen years ago, a scientist at the same facility died after sticking themselves with an Ebola-laced needle, leading to concerns about ...

Anthony Von Leeuwenhoek, in the 17th century, was the first to observe bacteria using a microscope. Edward Jenner developed the smallpox vaccine in 1796, pioneering immunization practices.

While the race for a Covid-19 vaccine continues, scientists are learning more about the early vaccines used to fight smallpox, the only human infectious disease to be successfully eradicated.

Warning - this story contains graphic images. In the summer of 1978, the last known case of smallpox was reported, claiming the life of 40-year-old medical photographer Janet Parker. But how did ...