Communicable Diseases

3. microorganism that infects the digestive system
6. COVID-19, for example
8. many communicable diseases occur in this tract
10. this response triggers to prevent pathogens from invading your body
12. the state of being protected against a particular disease
15. the flu can cause high fever, _____, headache, muscle ache, and coughing
17. used by certain white blood cells to detect and destroy pathogens
18. substance that kills or interferes with cells
20. white blood cells

1. single-celled microorganisms that are everywhere
2. the MMR vaccine is a _____-virus vaccine
4. to prevent spreading infection, refrain from sharing ____ makeup
5. a pregnant person may transmit an infection to their unborn child through this organ
6. malaria is caused by these more complex single-celled organisms
7. illness spread from one living organism to another
9. body system of network of cells, tissues, organs, and chemicals that fight pathogens
11. specialized white blood cells with two types
13. H1N1 is a respiratory virus normally found in _____
14. mad cow disease for example
16. piece of genetic material surrounded by a protein coat
19. membranes that line the nose, ears, and mouth