Good question. Generally we don't directly study smallpox, because it is a very dangerous virus. Instead we study related viruses such as Vaccinia.
However the CDC in Atlanta does maintain smallpox for research, but only under extremely safe conditions.
The treatment for smallpox was to get a vaccination.
Smallpox has been eradicated. It only exists in isolated repositories in highly protected government facilities in both the United States and Russia. Whilst there is currently no chance of a person contracting smallpox, it is conceivable that specimens from the stockpile, which was supposed to be destroyed back in 1993, could be used in biological warfare. They are still available for scientists to study.
Scientists do not study family trees. Geneticists are scientists who study genetics and inheritance. Genealogists study family trees, but they are not scientists.
scientists study plants by putting them into?
what do we call scientists who study plant
When scientists study plants, it is called Botany.
Scientists who study the universe are known as cosmologists.
Types of rocks are inside the Earth, so scientists study them.
Scientists who study earth's oceans are called oceanographers.
Why do scientists study Earth's tidal patterns?
Scientists refer to the study of weather as meteorology.
Scientists who study Earth's surface and interior are called Geologists.