Sporadic

Pandemic

Endemic

Progressive or propogated

Point source

when the disease is transmitted from person to

person, with generations of successful infections occurring

when cases occur only within one incubation

period, and the source of infection is limited to a shorter time of period

when cases occur over many incubation periods,

and the source of infection is ongoing or continuous

when cases occur intermittently with irregular peaks

The number of individuals who recover from an

infection

The number of deaths resulting from an outbreak

The effectiveness of vaccination programs

The number of secondary infections caused by one

infected person

Control

Elimination

Extinction

Progressively rises and might plateau

Progressively shows higher peaks with incubation periods apart

Constantly rises to a peak and gradually falls

Rapidly rises and shows no stop

They provide exact predictions of disease spread

without the need for real-time data

They

eliminate the need for vaccination by predicting natural herd immunity

timelines

They solely focus on the genetic mutations of

pathogens without considering human behavior

Cases arise from a single contaminated source, such as food or water

The outbreak occurs due to industrial pollution

Cases appear suddenly and then rapidly decline without further spread

The disease spreads from person to person over time