1. Do all the diseases spared to people coming in contact with a sick person?
2. What does the word "health” mean?
3. What are the vectors?
4. What do you mean by immunization?
Answers
Answer:
1) No many diseases are not transferred through other sick persons or viruses those are called non communicable diseases .NCDs include Parkinson's disease, autoimmune diseases, strokes, most heart diseases, most cancers, diabetes, chronic kidney disease, osteoarthritis, osteoporosis, Alzheimer's disease, cataracts, and others.
2) Health is a state of complete physical, mental and social well-being and not merely the absence of disease or injury .
3)vector is an organism that does not cause disease itself but which spreads infection by conveying pathogens from one host to another. Examples-mosquito that carries the malaria parasite Plasmodium between humans, and the tsetse fly that carries trypanosomes from other animals to humans. Dogs, bats, and other animals are vectors that transmit the rabies virus to humans.
4) Immunisation describes the process whereby people are protected against illness caused by infection with micro-organisms (formally called pathogens). Immunization is done through various techniques, most commonly vaccination. Vaccines against microorganisms that cause diseases can prepare the body's immune system, thus helping to fight or prevent an infection.
hope it helps
plz mark as brainliest