Other foods which are associated with this food poisoning include: 1  Fish. 2  Unpasteurised milk. 3  Desserts. 4  Soups. 5  Salads. 6  Cheese and cheese based products. 7  Pasta. 8  Starches such as rice and potatoes.
Tuberculosis, also called TB, is an infection caused by a bacteria. TB usually affects the lungs, but it can spread to the kidneys, bones, spine, brain, and other parts of the body. The most commonly used skin test to check for TB is the PPD â purified protein derivative. If you have a positive PPD, it means you have been exposed to a person who has tuberculosis and you are now infected with the bacteria (mycobacterium tuberculosis) that causes the disease. Not necessarily.
If you have been exposed to someone with the flu, you may be concerned about catching it. You may also wonder how long it takes to get sick after you have been exposed and how long you are contagious when you have it. Flu Incubation Period The typical flu incubation periodâthe time between exposure and the start of symptomsâis between 24 hours and four days, with the average being two days. This means that if you are exposed to the influenza virus and become infected, you will start to experience flu symptoms anywhere between 24 hours and four days after the exposure. Another factor that contributes to how the flu spreads is when exactly you may be contagious.