The thymus is a specialized organ that educates T cells or T lymphocytes, which are part of the adaptive immune system. Describe the, structure, location, and role of the thymus in the immune system. Each T cell is specialized to attack a different antigen, but those that attack self-antigens are destroyed by the thymus during selection processes in during lymphocyte proliferation and maturation.
The symptoms of a parasitic infection can include constipation, anemia, fatigue, diarrhea, gas, bloating and anal itching. If an undercooked lobster is eaten, the individual is at risk for developing a parasitic infection. The two most common types of parasitic infection include tapeworms and roundworms.
Symptoms. Shellfish allergy symptoms generally develop within minutes to an hour of eating shellfish. They may include: 1  Hives, itching or eczema (atopic dermatitis). 2  Swelling of the lips, face, tongue and throat, or other parts of the body. 3  Wheezing, nasal congestion or trouble breathing. 4  Abdominal pain, diarrhea, nausea or vomiting. 5  Dizziness, lightheadedness or fainting. 6  Tingling in the mouth.