The Appalachian State University campus is currently operating under NORMAL conditions.
Pandemic: Infectious Disease: Pandemic Phases
Pandemic Phases as identified by the World Health Organization (WHO):
Inter-pandemic Period
- Phase 1: No new influenza virus subtypes have been detected in humans. An influenza virus subtype that has caused human infection may be present in animals. If present in animals, the risk to human infection or disease is considered to be low.
- Phase 2: No new influenza virus subtypes have been detected in humans. However, a circulating animal influenza virus subtype poses a substantial risk of human disease.
Pandemic Alert Period
- Phase 3: Human infection(s) with a new subtype but no human-to-human spread or at most rare instances of spread to a close contact.
- Phase 4: Small cluster(s) with limited human-to-human transmission but spread is highly localized, suggesting that the virus is not well adapted to humans.
- Phase 5: Large cluster(s) but human-to-human spread is still localized, suggesting that the virus is becoming increasingly better adapted to humans but may not yet be fully transmissible (this creates a substantial pandemic risk).
Pandemic Period
- Phase 6: Pandemic phase: increased and sustained transmission in the general population.
Post-pandemic Period
- Return to Inter-pandemic Period (Phase 1).
