What happens in rheumatoid arthritis, exactly?

What is it? Rheumatoid arthritis (RA) is a long-term condition that typically causes joints to become painful, swollen and warm. It is an autoimmune disease which means that it is caused by the body’s immune system attacking the body itself. RA affects about 0.5% to 1% of adults in the developed world. Women are affected… Continue reading What happens in rheumatoid arthritis, exactly?

What happens in sepsis, exactly?

What is it? Sepsis is a life-threatening condition in which the body’s reaction to infection starts to damage its own tissues. Typical symptoms include fever, increased heart rate and breathing rate, and confusion. In severe cases sepsis can cause things like poor organ function and insufficient blood flow. In septic shock the sepsis has caused a… Continue reading What happens in sepsis, exactly?

What happens in acute pancreatitis, exactly?

What is it? Acute pancreatitis is a sudden inflammation of the pancreas. Typical symptoms include a severe pain in the upper stomach, nausea, vomiting, and a loss of appetite. In the US there are about 18 cases of acute pancreatitis per 100 000 people a year, and it accounts for about 220 000 hospitalizations. What… Continue reading What happens in acute pancreatitis, exactly?

What happens in tonsillitis, exactly?

What is it? Tonsillitis is an inflammation of the tonsils. It is most commonly caused by a viral or bacterial infection – when it’s caused by a bacterium called group A streptococcus, the condition is sometimes referred to as strep throat. The most noticeable symptom is often pain in the throat, which gets very bad when… Continue reading What happens in tonsillitis, exactly?

What happens in rabies, exactly?

What is it? Rabies is a viral disease that causes acute inflammation of the brain. It is present in humans as well as other mammals, and it causes around 24 000 – 60 000 deaths per year, most of which occur in Asia and Africa. Rabies is spread through the bite of an infected animal:… Continue reading What happens in rabies, exactly?

What happens in chlamydia, exactly?

What is it? Chlamydia is a sexually transmitted bacterial infection. Not having any symptoms is common. When symptoms do appear, they include pain when urinating, unusual discharge from the vagina, penis or rectum, and abnormal bleeding from the vagina. Even when chlamydia doesn’t cause symptoms, there’s a good chance of it developing into an inflammation of… Continue reading What happens in chlamydia, exactly?

What happens in meningitis, exactly?

What is it? Meningitis is an acute inflammation of the membranes covering the brain and the spinal cord. Typical symptoms include fever, headache, and neck stiffness. Small children, however, often show instead very unspecific symptoms, such as irritability and drowsiness. There are many causes for meningitis, and therefore many different sets of symptoms. The mortality… Continue reading What happens in meningitis, exactly?