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Chain of Infection
| Question | Answer |
|---|---|
| Second Element in the cycle of infection | Reservoir host |
| Third Element in the cycle of infection | Means of exit |
| forth Element in the cycle of infection | Means of transmission |
| fifth Element in the cycle of infection | Means of entrance |
| sixth Element in the cycle of infection | Susceptible host |
| reservoir agents | People, Food, insects, animals, exam tables, H2O, Contaminated surfaces |
| 5 Pathogens | Fungi, Bacteria, Virus, Protozoal Rickett sites |
| (Mode of Transmission) Indirect Contact | Sneezing, coughing ingestion, inhalation |
| (Mode of Transmission) Direct Contact | Body Fluids, Urine, CSF, Feces, Blood |
| Portal Exits | ears, Mouth, Eyes, Nose, Body- fluid, feces, urine, semen, Vaginal fluid, reproductive tract discharge, Blood |
| Protozoal | Parasites |
| Fungi | Mold, Yeast |
| rickettsiae | Ticks |
| Means of exit | The route a pathogen takes to exit from a reservoir host is called |
| Human Carrier is also known as | Reservoir host |
| Means of Entrance | Mouth, ears, Nose, Throat, Vagina, or Rectum |
| Vector-borne transmission | “The most common carriers are insects such as fleas, flies, mosquitoes, and ticks.” |
| Foodborne transmission | A new host may be exposed to pathogens by ingesting contaminated food or liquids.” |
| Airborne transmission | “A pathogen that enters a new host by inhalation.” |
| Bloodborne transmission | “A pathogen that may be transmitted through indirect contact such as accidental needlesticks.” |
| First Element in the cycle of infection | Infectious agents |