Bacteria produces toxins (poisons) which make us ill.
Salmonella
Food poisoning is spread by eating contaminated food and unhygienic conditions. We vaccinate, poultry chickens against salmonella to reduce the spread of disease. Symptoms: stomach, cramps,, vomiting, and diarrhea.
Gonorrhea
Is a STD sexually transmitted disease which is spread through sexual contact. It can be easily treated with antibiotics and the spread can be reduced by using condoms symptoms: yellow green discharge.
Antibiotics
.kills bacteria by destroying their cell walls.
.they do not kill viruses because viruses live inside cells.
White blood cells
Produce antibodies to fight off disease. (pathogens)
Pre-clinical trials
.not tested on humans
.test drug on tissue in lab
. test drug on animals in lab
. computer modals
Clinical trials
.tested on humans
. use healthy volunteers to test for toxicity and side effects
.use it on a small number of patients at a low dose to reduce any risks.
