What are immunocompetent cells?

What are immunocompetent cells?

Astrocytes are immunocompetent cells that participate in local immunological reactions. At the site of CNS damage, these cells can phagocytose dead cells and act as an antigen presenting cell in the initial phase of the immune response. Activated astrocytes express MHC II, which is involved in antigen presentation.

Which cells help regulate the immune response?

Regulatory (suppressor) T cells are white blood cells that help end an immune response. T cells (T lymphocytes) are white blood cells that are involved in acquired immunity. There are three types: helper, killer (cytotoxic), and regulatory.

Which of the following are types of adaptive immune responses?

There are two types of adaptive responses: the cell-mediated immune response, which is controlled by activated T cells, and the humoral immune response, which is controlled by activated B cells and antibodies.

Why antibiotics are not effective for viral diseases?

Antibiotics are useless against viral infections. This is because viruses are so simple that they use their host cells to perform their activities for them. So antiviral drugs work differently to antibiotics, by interfering with the viral enzymes instead.

Which disease Cannot be cured by antibiotics?

Only bacterial infections can be killed with antibiotics. The common cold, flu, most coughs, some bronchitis infections, most sore throats, and the stomach flu are all caused by viruses, not bacteria.

How do you get rid of a bacterial infection in your throat?

Rest, warm liquids, saltwater gargles, and over-the-counter pain relievers can help soothe the pain of a sore throat at home. Strep throat and other bacterial infections are treated with antibiotics. Your doctor can use a swab test to find out if you have strep.

How long does a bacterial throat infection last?

When not taking antibiotics, bacterial infections and the sore throats they cause may last anywhere from a week to 10 days. Sore throats caused by bacteria can sometimes be associated with a more serious illness.