Definitions...

Entry of pathogen

Colonization of mucosal surface by pathogen

Invasion of cell/tissue by pathogen

All of these

A contagious disease

A disease caused by an infection

A state of pathogen presence in the body without obvious symptoms

A disease caused only by bacterial produced toxins

A disease that results from human communication

A disease that is caused by environmental toxins

A disease that can spread from an infected person to another host

A disease that is always present in a community

Any disease that spreads through contaminated food

A disease that only affects animals

A disease that spreads easily from person to person

A condition that only spreads through insect bites

A disease that originates in animals and can spread to humans

A disease only occurring among animals

A disease that strictly occurs in humans

A disease that is spread only through direct contact with animals

A disease that is always present in a particular population

A disease that suddenly appears and disappears unpredictably

A worldwide outbreak of disease

A condition that affects only travellers

A disease that is spread through spores

A disease that spreads quickly across continents

A seasonal disease with predictable patterns

A disease that occurs irregularly and infrequently

A communicable disease

A disease that has spread worldwide

A disease that never spreads beyond its original host

A disease which occurrence exceeding the expected levels in a population

A disease affecting panda populations

A condition that is limited to a single community

A worldwide epidemic affecting multiple continents

A disease affecting multiple countries

Living and non-living source where a pathogen normally resides

Non-living source of pathogen

A temporary host for a virus that does not spread disease

The only place where pathogens can survive