Mayuresh

2. an infective agent that typically consists of a nucleic acid molecule in a protein coat
5. a DNA molecule (often plasmid or virus) that is used as a vehicle to carry a particular DNA segment into a host cell
7. a widespread occurrence of an infectious disease in a community at a particular time.
8. A pandemic is an epidemic of an infectious disease that has spread across a large region
10. the immune system's response to harmful stimuli, such as pathogens, damaged cells, toxic compounds, or irradiation
11. the communication of disease from one person or organism to another by close contact
12. a blood protein produced in response to and counteracting a specific antigen.
13. a bacterium, virus, or other microorganism that can cause disease.

1. immunity that develops after exposure to a harmful pathogen
3. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.
4. a type of protein that can trigger normal proteins in the brain to fold abnormally
6. treatment to produce immunity to a specific pathogen or disease
9. a foreign substance that initiates an immune response.