Yersinia pestis: The bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and later in the Middle Ages decimated Europe. The effects of the plague are described in the nursery rhyme We all fall down.. Y. pestis mainly infects rats and other rodents which are the prime reservoir for the bacteria. Fleas are the prime vectors carrying the bacteria from one species to another. They bite rodents infected with Y. pestis, then they bite people and so transmit the disease to them. Transmission of the plague to people can also occur from eating infected animals such as squirrels. Once someone has the plague, they can transmit it to another person via aerosol droplets.
Other symptoms of reactive arthritis include: 1  feeling unusually tired (fatigue). 2  mild fever (a high temperature between 37-38Â°C or 98.6-101.0Â°F). 3  mouth ulcers. 4  painless white rashes inside your mouth. 5  a skin rash. 6  your nails can become thick and crumbly.
Men between ages 20 and 40 are most likely to get reactive arthritis. Men are also more likely than women to get the form that is caused by a bacteria passed along during sex. Women and men are at equal risk of getting the disease because of bacteria in food. Women with reactive arthritis often have milder symptoms than men.