2026\2027 A+ Grade
chain of infection
- correct answer infectious agent, reservoir, portal of exit, mode of transmission, portal of entry,
susceptible host
Vehicle to Transmissions (8)
- correct answer Direct Contact; Indirect Contact; Human Carrier; Airborne; Water Borne; Food-Born;
Vectors; Blood-Born
Single most useful and effective means of breaking chain of infection
- correct answer Hand washing
What is the most frequent mode of disease transmission?
- correct answer direct contact
Normal Cause of Infection
- correct answer Phase 1: Incubation period
Phase 2: prodromal stage
Phase 3: full stage of illness
Final Phase (4): convalescent stage
Spores
- correct answer Protect certain bacteria and become resistant to the environment and can cursive
extreme conditions of light, dying and many chemicals. Spore forming bacteria are most difficult to
control and destroy
, Pathogenic Bacteria
- correct answer Neisseria causes gonorrhea, upper respiratory infections and infectious meningitis.
Droplet Diseases
- correct answer Meningitis, Pneumonia, Diphtheria, Streptococcal Pharyngitis, Influenza, Mumps, and
Rubella
contact precautions
- correct answer Diseases include drug-resistant gastrointestinal, respiratory, skin and wound infections,
hepatitis A, herpes simplex virus, and acute diarrhea
Response to infection
- correct answer Incubation - When the Pathogen Enters the Body
Prodromal Stage - onset of initial symptoms
Full Stage of Illness - symptoms are acute and specific to the type of infection
Convalescent Stage - acute symptoms subside
nosocomial infection
- correct answer a disease acquired in a hospital or clinical setting
Potential reservoirs for pathogenic growth in clinical setting
- correct answer IV Fluids
Foods
Biological Materials
Equipment
host resistance
- correct answer Naturally occurring body floras have an antibiotic relationship with pathogens and
contribute to an individual's health
side effects
- correct answer Negative effects or actions other than the desired actions