how does our immune system work? explain briefly. mention three ways by which communicable diseases spreads. give one example of each kind.
Answers
Answered by
2
Your body makes proteins called antibodies that destroy abnormal or foreign cells. They help fend off common ailments like the flu or a cold, and protect you against major illnesses like cancer or heart disease.
abhishekmurumkar77:
1).physical contact with an infected person, such as through touch (staphylococcus), sexual intercourse (gonorrhea, HIV), fecal/oral transmission (hepatitis A), or droplets (influenza, TB)
2).contact with a contaminated surface or object (Norwalk virus), food (salmonella, E. coli), blood (HIV, hepatitis B), or water (cholera);
3).bites from insects or animals capable of transmitting the disease (mosquito: malaria and yellow fever; flea: plague).
thanks
Wlcm...
Similar questions