B2 Keeping Healthy Part 1

1. What do different types of white blood cells do

Some engulf and digest invading microorganisms and others produce antibodies which recognize and destroy invading microorganisms
Destroy red blood cells
contain hemoglobin — a red, iron-rich protein that gives blood its red color. Hemoglobin enables red blood cells to carry oxygen from your lungs to all parts of your body and to carry carbon dioxide from other parts of the body to your lungs so that
Carry oxygen to the heart

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a vaccine that causes disease
a type of antimicrobials which are effective against bacteria but not against viruses. they allow doctors to treat illnesses caused by bacteria, such as tuberculosis
A group of substances that are used to kill microorganisms or ihibit (slow) their growth. They are effective against bacteria, viruses and fungi.
chemicals that prevent the growth of microorganisms, so provide protection against the disease

prescribed only for serious infections and completed so all bacteria is killed
lots and lots of antibiotics (20 daily)
prescribed only for serious infections and uncompleted so that your body can remember the microorganism for the next time it enters the body
completed so that all bacteria is killed and taken once a week

the patient becomes blind/severely blind due to vaccination
when the patient and doctor both know the treatment. This type of trial happens when there is no other treatment and the patients are so ill that doctors believe they will not recover from their illnesses
when one group called the test group is given the new drug being trialled. the results are compared with the control group. one control group receives existing treatment the other control group receives a placebo