Smallpox is caused by the variola virus, which spreads through skin-to-skin contact or contact with bodily fluids. It can also be spread through the air. In 430 B.C., smallpox killed more than ...

You have this convergence of crises,” says Dr. Angelle Desiree LaBeaud. Here’s what that means and how she and others are ...

Climate change is creating new pathways for the spread of infectious diseases like brucellosis ... agents with the ability to spread to humans through different means, like water, food or the ...

The infectious disease ... Measles is spread through contact with infected nasal or throat secretions, or by breathing in the virus after it's coughed, sneezed or sent into the air by an infected ...