Showing no symptoms of a headache

Showing no symptoms of a particular disease

Feeling hungry

Showing symptoms of a particular disease

A person who dies not transmits a disease to others

A person that transmits a disease to others

A person who carried goods

A person who feels sick

identification and monitoring of people who may have had contact with an infectious person

identification and monitoring of people who may have not had contact with an infectious person

identification and monitoring of people who may have been ill.

identification and monitoring of people who may have no symptoms

describing a disease that can not pass from person to person

describing a disease that can pass from person to person

describing a disease that is not dangeous

describing a disease that has no affect.

any one of a large family of viruses only affects animals

any one of a large family of viruses that can cause no harm

any one of a large family of viruses that can cause disease in the breathing and eating systems

A medication against headache

identify an illness by smelling

identify an illness by touching

identify an illness by examining the symptoms

identify an illness by visual senses

the spray produced when people drink

the spray produced when people cough or sneeze

the spray produced when people sleep

the spray produced when people eat

occurrence of a particular disease within the family

occurrence of a particular disease in a small number of people

occurrence of a particular disease in a large number of people

occurrence of a particular disease

change the steep upward curve on a graph of new disease cases to a straight line

change the steep upward curve on a graph of new disease cases to a another upward curve

change the steep upward curve on a graph of new disease cases to a bigger upward curve

change the steep upward curve on a graph of new disease cases to a flatter, shallower upward curve

an indirect protection from a disease for only a few pople

an indirect protection from a disease resulting from a large percentage of the population gaining no immunity

an indirect protection from a disease for elderly people only

an indirect protection from a disease for children only

the time from a person’s first symptoms

the time from a person’s first exposure

the time from a person’s first exposure to a disease to the time when symptoms develop

the time from a person’s first exposure to a disease

keep an infected person in a prison

keep an infected person at home

keep an infected person together with a healthy people

keep an infected person away from healthy people

a slow occurrence of a disease

a sudden occurrence of a disease

a sudden occurrence of a weather phenomen

a sudden occurrence of a water shortage

test that detects viral particles in blood or other body fluids.

test that does not detects viral particles in blood or other body fluids.

test that detects viral particles in your brain

test that detects viral particles in your arms