Infectious Diseases

3. A type of lymphocyte that plays a central role in cell-mediated immunity
5. The component of the immune system that adapts its response to specific pathogens and holds memory of them
8. A preventive measure against infectious diseases using a vaccine to stimulate the body's immune system
9. The invasion of microorganisms in body tissues, causing disease
11. The first line of defense in the immune system, offering immediate but nonspecific protection
13. The specific microorganism/pathogen that is responsible for causing an infectious disease
14. A lymphocyte responsible for producing antibodies
15. The body's defensive reaction to foreign substances or pathogens
16. A widespread occurrence of an infectious disease in a community at a certain period of time
17. Temporary immunity obtained by transferring antibodies from one individual to another
19. Protection developed after exposure to a disease or through vaccination, involving the body's own immune response

1. Microorganisms that may cause disease; it is spread by touch of objects or people, and can be spread through the air; some bacteria are harmful, some are beneficial
2. The process by which pathogens are spread from one host to another; it can be direct or indirect
4. My Name
6. An organism that transmits disease from one host to another
7. An outbreak of an infectious disease that spreads across a large region; it can be worldwide
9. The ability of the immune system to quickly and effectively respond to pathogens it has previously encountered
10. The natural host or environment in which a pathogen lives and multiplies, without causing disease to the host
12. The science and practice of protecting and improving the health of people and communities through different forms of actions/practices
18. A microscopic pathogen that can replicate/duplicate only inside the living cells of organisms, often causing harmful diseases