Infection

2. Higher than normal transmission or spread to new geographical area
5. Infections follow a primary infection and are caused by a microbe other than the one causing the primary infection.
9. Transmission (oral or respiratory) occurring when respiratory or salivary secretions containing pathogens such as tuberculosis bacteria are expelled from the body.
13. The degree/severity of pathogenicity of a specific microbe based on the invasive and toxic qualities, adherence to tissue, and the ability to avoid the host defenses.
14. Infectious disease develops fully
15. Infections are infections that occur in health care facilities
16. Infections are infectious agents that concurrently establish themselves at the same site.
19. Infections occur with less severe symptoms than acute but persist for a long period.
20. Infections are initial or first-time exposure/infections.
22. The capacity of microbes to cause disease. For example, if Escherichia coli from the colon enters the urinary tract, an infection can occur.
23. Infections spread to several sites and tissue fluids via the circulatory system.e.g. Septicemia- multiplication of pathogenic organisms in blood causing toxic inflammatory condition
24. Single individual
25. Signs subside and body processes return to normal

1. Infections do not cause apparent signs or symptoms, though they may persist over a long period of time. Eg MRSA
3. Infections occur in a confined specific location on the body.
4. Contact involving an intermediary such as a contaminated hand or food, or a fomite, an inanimate object
6. Transmission has occurred on most continents.
7. When an insect or animal serves as an intermediary host in a disease such as malaria.
8. Infections spread from a local infection to other tissues.
10. Infections occur rapidly with severe symptoms but are short-lived.
11. Continuous transmission within a population
12. Vague, non-specific signs and symptoms
17. Time between entry of organism into the body and appearance of clinical signs of disease
18. Contact with no intermediary
21. Transmission involving small particles from the respiratory tract that remain suspended in the air and travel on air currents, infecting any new host who inhales the particles.