Smallpox is an infectious disease caused by the variola virus. It is characterized by the appearance of a rash on the skin, which turns into pustules and eventually scabs over, leaving behind pitted scars. Smallpox was once a major cause of death worldwide, but thanks to widespread vaccination efforts, it has been eradicated since 1980.
Symptoms of smallpox typically begin with a sudden onset of flu-like symptoms such as fever, headache, fatigue, and body aches. After a few days, the characteristic rash begins to appear on the face, arms, and legs. The rash begins as flat, red spots, but quickly progresses to raised, fluid-filled bumps known as pustules. These pustules can be painful and itchy, and they are typically most severe on the face and extremities. Over the course of about two weeks, the pustules begin to scab over and eventually fall off, leaving behind scars.
In addition to the rash and flu-like symptoms, smallpox can also cause a number of other complications. These can include dehydration, bacterial infections of the skin and other tissues, pneumonia, and inflammation of the brain (encephalitis). People with weakened immune systems, such as those with HIV/AIDS or who are taking immunosuppressant drugs, are at higher risk of developing severe complications from smallpox.
If you suspect that you or someone you know may have smallpox, it is important to seek medical attention right away. While smallpox is no longer a common disease, it is still a serious illness that requires prompt diagnosis and treatment. If you have not been vaccinated against smallpox, it is also important to talk to your doctor about getting vaccinated, especially if you are traveling to areas where smallpox is still a concern.
