Microbiology

4. Showed hand-washing reduces disease transmission
6. the period when signs and symptoms first appear in a person infected with an illness
7. Microscopy that presents microbes as unstained on a dark background
9. Gram negative cell with no intact cell wall
13. Carbohydrate moiety attached to a membrane protein
15. Showed how microbes spoil wine
16. Yersinia pestis
17. Father of Bacteriology
18. Incidence of a disease in a population; both fatal and nonfatal
19. Microscopy in which electrons are used to view the surface of a specimen
20. Bacillus anthracis
21. Enzyme that breaks the bond holding the subunits of a cell wall together; often found in mouth and tears
23. Greatest pure bacteriologist
24. Microscopy that can show the internal structures of live, unstained cells

1. Developed modern method of vaccination
2. Showed existence of heat-stable microbes and heat-labile forms
3. Clostridium tetani
5. Improved experimental designs showed now spontaneous generation support
8. Father of microbiology
10. Gram positive cell with the cell wall removed
11. Developed the canning process
12. Microorganism that does not ordinarily cause disease but can under certain circumstances
14. Phosphate containing polyalcohols extending from the wall of a Gram-positive cell
22. Did experiments with heated air in 1837
25. Objective characteristics of a disease that can be observed by someone else