Per CDC Key points Smallpox was an infectious disease caused by the variola virus. Smallpox has been eradicated, with no cases occurring since 1977. The disease caused rashes and could spread through coughing and sneezing. Smallpox no longer occurs naturally, but it is possible that variola virus could be used in a biological attack. Although unlikely, public health authorities prepare for the possibility of smallpox being used as a weapon. Overview Before smallpox was eradic

Per CDC: Key points Brucellosis is a disease caused by bacteria. The disease spreads to people through contact with infected animals or contaminated animal products. People in certain jobs or settings that work with animals or animal products may face increased exposure to the bacteria that cause brucellosis. Brucellosis can be treated with antibiotics. Signs and symptoms Brucellosis can cause a range of signs and symptoms in people, and some can occur for a long time before

Per CDC Key points HIV is a virus that attacks the body's immune system. The only way to know if you have HIV is to get tested. There are many ways to prevent HIV, like using PrEP, PEP, condoms and never sharing needles. HIV treatment helps people live long, healthy lives and prevents HIV transmission. Symptoms Most people have flu-like symptoms within 2 to 4 weeks after infection. Symptoms may last for a few days or several weeks. Having these symptoms alone doesn't mean yo

Per CDC: At a glance Cigarette smoking is a major public health concern, with over 16 million Americans living with a smoking-related disease. Smoking and secondhand smoke exposure cause over 480,000 deaths in the U.S. each year. Smoking harms nearly every organ of the body and causes many diseases. Quitting smoking lowers the risk for early death and of developing smoking-related diseases. Cigarette smoking causes: Cancer Heart disease and stroke Lung diseases such as chron

Per CDC: Electronic cigarettes (e-cigarettes) are sometimes called e-cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E-cigarettes come in many shapes and sizes. Most e-cigarettes contain nicotine. Get the facts about e-cigarettes, their health effects, and the risks of vaping. The bottom line There are no safe tobacco products, including e-cigarettes. E-cigarettes should not be used by youth, young adults, or women who are pregnant. Adults who have ne

Per CDC What to know Classic CJD is a quick-moving, always fatal disease that occurs worldwide. It affects the brain and causes dementia and other problems. CJD mostly occurs in older adults. There is no treatment or cure. It usually leads to death within a year from when symptoms begin. How it affects your body People with CJD suffer from dementia. Other symptoms may include trouble walking, sudden jerky movements, and visual disturbances. CJD patients usually die within one