Epidemiology Prevalence - % Incidence - # Endemic Epidemic Pandemic

Carriers Mortality Morbidity Disease Reservoirs Acute Carriers Incubation Period Chronic Carriers

Transmission Host-to-Host Zoonosis Vector Fomites Food and Water Common-Source Epidemic

John Snow Stopped Cholera Epidemic in London (1855) by Removing Broad Street Pump Handle

Host Parasite Coevolution Australian feral rabbits 1950 – Myxoma virus 95% mortality 1980 previrus levels Gonorrhea Scarlet fever

Herd Immunity Nosocomial Infections Opportunistic pathogens Mycosis

Public Health Control Reservoir Prevent Transmission Immunization Quarantine Surveillance CDC –Center for Disease Control and Prevention Pathogen Eradication

Global Health Travel Developing Countries Reemerging Diseases

Biological Warfare Easy to produce and deliver - aerosol Safe Incapacitate or Kill 1972 Biological & Toxin Weapon Convention

Biological Weapons Any Pathogen? Smallpox Eradicated? Russia and United States Delivery Aerosol Drinking water Food Protection?

Anthrax Bacillus anthracis Common in soil Domestic animals Pulmonary anthrax 8000 – 50000 spores Weaponized 8 day incubation Ciprofloxacin - Cipro

Epidemiology Word List Prevalence Incidence Endemic Epidemic Pandemic Carrier Mortality Morbidity Disease Reservoirs Acute Carrier Incubation Period Chronic Carrier Typhoid Mary Transmission Host-to-Host Vector Fomites Food and Water Common-Source Epidemic John Snow - Cholera Herd immunity Nosocomial Infections

Epidemiology Word List 2 Surveillance Pathogen Eradication Global Health Travel Developing Countries Reemerging Diseases Emerging Disease Opportunistic pathogens Mycosis Public Health Control Reservoir Prevent Transmission Immunization Quarantine