Question

Complete these sentences.
1. The function of mucus secreted by nose is
2. Antibodies are formed by
3. The full form of BCG is
4. Toxoids are​

Answer 1

Answers:

1. The function of mucus secreted by nose is to filter the air breathed in.

2. Antibodies are formed by lymph cells.

3. The full form of BCG is bacillus Calmette–Guerin.

4. Toxoids are inactive toxins produced by bacteria.

Explanations:

Part 1:

There are different types of particles such as dust, bacteria, micro-particles given out by industries etc. in the air. The primary expulsion of these particles from entering the respiratory system is done by the mucus which is secreted by the nose. This is the reason why people with cold have extra mucous in the nose to prevent the entry of more disease-causing organisms.

Part 2:

Lymph cells which are also known as lymphocytes are a type of white blood cells that help in the creation of antibodies. That is, when vaccines containing dead or weakened pathogenic cells is injected into the body, the lymphocytes create antibodies to kill these pathogens and stay on in the blood to prevent the entry of the same organism again in the future.

Part 3:

Bacillus Calmette–Guerin is a vaccine that helps to prevent the really infectious bacterial disease named tuberculosis. Bacillus refers to the rod shaped bacteria and Calmette-Guerin refers to its two founder scientists Albert Calmette and Camille Guerin. Tuberculosis affects the lungs.

Part 4:

Toxoids are inactive toxins which are produced by bacteria and viruses that help in the production of vaccines.

Answer 2

Explanation:

At 1-2 days old, detects 30-40% of cases, at 2-3 weeks detects >90%, and detects 100% after 4 months of age. HIV ELISA or western blood can also be used after age 18 months. Can't use 4th generation screening tests with <18mo infants with HIV+ mothers because they will have received mom's antibodies and those test don't differentiate between ...