DISEASES

A virus that causes an itchy, blistery rash all over the body, along with fever and drowsiness. It spreads through the air or by contact with fluid from the rash. LEARN MORE

A bacterial disease usually spread through contaminated water. It can cause severe diarrhea and dehydration. A majority of people may have mild symptoms. However, it can become very serious and lead to death if not treated for those who develop severe symptoms. LEARN MORE

A disease caused by bacteria that live in an infected person’s mouth or throat, spread through coughing and sneezing. Symptoms can include a sore throat or fever, and it may cause difficulty breathing. LEARN MORE

A contagious liver disease found in bowel movements that can spread by personal contact or through contaminated food or water. LEARN MORE

A virus spread through contact with infected blood or other body fluids, or from mother to baby at birth. It can cause liver disease and yellow skin or eyes (jaundice). LEARN MORE

A disease caused by bacteria spread through the air by coughing or sneezing. Symptoms include ear infections and serious throat swelling. It mostly affects children under five years old. LEARN MORE

A group of common viruses that infect adult men and women as well as teens. It is spread through intimate skin-to-skin contact, most commonly through vaginal or anal sex. Most infections go away on their own, but others can lead to certain types of cancers. LEARN MORE

A respiratory virus spread through the air by coughing, sneezing, talking or from surfaces that have the virus on them. The flu affects each person differently and symptoms vary. LEARN MORE

A viral infection spread by mosquitoes in Asia and the western Pacific. Less than 1 percent of infected people get sick, but it can make 1 in 250 people severely ill. Symptoms can include high fever, headache, weakness and confusion. LEARN MORE

A very contagious virus that can cause a rash all over the body, fever, runny nose and cough. It spreads through the air by coughing, sneezing and even breathing. LEARN MORE

A bacterial disease spread through saliva and respiratory droplets in the air from coughing, sneezing or talking. The two most common types of infections from meningococcal disease are infections of the bloodstream or infections of the lining of the brain and spinal cord (meningitis). Symptoms similar to the flu can set in suddenly (fever, headache, stiff neck, vomiting) and progress quickly. The effects of this disease can be very severe. LEARN MORE

An infectious, viral disease caused by Orthopoxvirus. It spreads from person to person through close physical contact and can cause rashes, fever or chills, swollen lymph nodes, sore throat, headaches, muscle aches or back pain and fatigue. LEARN MORE

A contagious virus with no treatment. It spreads through the air and can cause fever, headache and inflammation of the salivary glands, leading to swelling of the cheeks and jaws. LEARN MORE

A disease caused by bacteria spread through the air or by direct contact with infected saliva or mucus. It’s very dangerous for older adults and children and can cause ear and sinus infections, pneumonia and meningitis. LEARN MORE

A disease caused by poliovirus. It spreads from person-to-person contact or objects with the virus on it. In severe cases it can infect the spinal cord, causing paralysis. About one in four people who catch poliovirus will have flu-like symptoms like sore throat, fatigue, fever and headache. LEARN MORE

A viral disease transmitted through direct contact with saliva from an infected animal, most often through an animal bite. When symptoms first appear, they may be similar to the flu including weakness, fever, headache and discomfort at the site of the bite. As symptoms progress it can lead to confusion, anxiety and agitation. Once clinical signs of rabies appear, the disease is nearly always fatal. LEARN MORE

A virus spread easily by hands, diapers or objects that have a small amount of infected stool on them. It can cause severe diarrhea, vomiting and fever, which can lead to severe dehydration. LEARN MORE

A common respiratory virus that usually causes mild, cold-like symptoms. Most people recover in a week or two, but RSV can be serious. Infants and older adults are more likely to develop severe RSV and need hospitalization. LEARN MORE

A virus spread through coughing and sneezing that causes swollen glands, a slight fever, rash and occasionally arthritis-like symptoms. LEARN MORE

A virus caused by varicella zoster virus (VZV), the same virus that causes chickenpox. After a person recovers from chickenpox, the dormant (inactive) version of the virus lives in the body and can reactivate years later, causing shingles. It causes a painful rash around one side of the face or body with blisters. Other symptoms include fever, headache, chills and upset stomach. LEARN MORE

A bacterial disease that enters through deep cuts and puncture wounds. It can cause headaches and spasms in the jaw muscles, leading to lockjaw. LEARN MORE

An illness caused by the Salmonella Typhi bacteria. It is spread through sewage contamination of food or water or through contact with an infected person. Most people in the U.S. who become ill with typhoid fever have traveled to other countries where the disease is more common. Symptoms include stomach pain, weakness, headache, diarrhea or constipation, cough and loss of appetite. LEARN MORE

A highly contagious disease caused by bacteria spread through the air. It can cause violent coughing spells that can affect eating, drinking and breathing. LEARN MORE

A virus found in tropical and subtropical areas of Africa and South America. It spread to people through the bite of an infected mosquito. Most infected people will not have symptoms. Other people may experience symptoms like pains, headaches, chills, nausea or vomiting, weakness and fatigue. A few people may develop more severe symptoms that may require treatment from a healthcare provider. LEARN MORE