22.Pandemic: Def. and 2 examples 20. Disease Outbreak: Def. and example 21. Epidemic: Def. and ex. 22.Pandemic: Def. and 2 examples 3 Past Influenza Epidemics/#dead 1. 2. 3. 23. Vector – Def. and 2 examples 24. Carrier – Def. and 2 examples 9. Epidemic/Pandemic/Vectors and Carriers

Vocabulary 20.Disease Outbreak: happens when a disease occurs in greater numbers than expected in a community or region, or during a season. Ex. Seasonal flu outbreaks

Vocabulary Continued 21.Epidemic: an illness that spreads rapidly to many people, usually in a more localized area or region *Ex: 2003 (SARS) severe acute respiratory syndrome killed 800 people *Ex. Ebola epidemic that affected countries in western Africa *Ex. Seasonal flu epidemics

Vocabulary 22. Pandemic: a disease outbreak/epidemic that affects an extremely large number of people and is geographically widespread, usually global; can occur in waves-not all of world affected at once Ex. Black Plague Ex. HIV/AIDS

FYI -Past Influenza Pandemics Spanish Flu (1918); 40-50 million deaths; affected North Carolina Asian Flu (1957); 2 million deaths. Hong Kong Flu (1968); 1 million deaths

Disease Transmission 23.Vector: an animal/insect that carries and transmits a pathogen (virus/bacteria/parasite) into another living organism; vector does not have the symptoms. Examples: mosquitoes (malaria/Zika), fleas (Black Death/ Plague), ticks (Lyme’s Disease, Rocky Mountain Spotted Fever), raccoons & bats (Rabies), monkeys (Ebola)

24. Carrier – A person who is carrying a pathogen/infectious disease in his/her body, but not showing any symptoms of the disease; can transmit the pathogen to other individuals who may get the disease. Ex. “Typhoid Mary” carried typhoid (bacterial infection) and infected many people while working as a cook. She didn’t exhibit any symptoms.