Medicine: Medicine: Past and PresentPast and Present

plagueplagueinfectedinfected

microbesmicrobesantibodiesantibodiesbacteriabacteriavaccinevaccine

epidemicepidemicimmune immune

dispeldispelsterilizesterilize

plagueplague “Use context “Use context clues”clues”In the middle of the fourteenth century, an In the middle of the fourteenth century, an epidemic called the Black epidemic called the Black PlaguePlague swept swept across Europe, Asia and Africa.across Europe, Asia and Africa.

A A plagueplague that swept through the country left that swept through the country left few people alive.few people alive.

plague plague - a disease that kills a large number of people- a disease that kills a large number of people

infectedinfected “Use context clues”“Use context clues”

Why did some wounds get Why did some wounds get infectedinfected and others heal? and others heal?

Wash that cut on your hand so it Wash that cut on your hand so it doesn’t get doesn’t get infectedinfected with germs. with germs.

Infected -Infected - having germs that cause disease having germs that cause disease

microbes microbes “Use context “Use context

clues”clues” He found many different kinds of He found many different kinds of microbesmicrobes, as these tiny animals are , as these tiny animals are called today.called today.

Tiny plants or animals called Tiny plants or animals called microbesmicrobes, or germs, cause disease., or germs, cause disease.

microbesmicrobes - tiny organisms or germs too small to be seen without a microscope. - tiny organisms or germs too small to be seen without a microscope.

Antibodies Antibodies “Use context “Use context clues”clues”

He tried to think of a way of getting the body He tried to think of a way of getting the body to develop these to develop these antibodiesantibodies to attack the to attack the disease without having to get smallpox first.disease without having to get smallpox first.

A person’s body makes A person’s body makes antibodiesantibodies that fight that fight against the effects of disease germs. against the effects of disease germs.

Antibodies -Antibodies - special substances produced by the body that special substances produced by the body that destroy or weaken germsdestroy or weaken germs

bacteriabacteria “Use context “Use context

clues”clues” Before he could make the connection Before he could make the connection between these between these bacteriabacteria, or germs, and , or germs, and diseases, he had a more difficult job. diseases, he had a more difficult job.

BacteriaBacteria is another name for germs that is another name for germs that cause disease.cause disease.

bacteriabacteria – germs – germs

vaccinevaccine “Use context “Use context

clues”clues” Using this information, Pasteur was Using this information, Pasteur was able to develop a able to develop a vaccine vaccine for anthrax.for anthrax.

Getting a Getting a vaccinevaccine for measles protects for measles protects you from catching the disease.you from catching the disease.

epidemicepidemic --

an outbreak of an outbreak of disease that spreads disease that spreads quickly to many quickly to many peoplepeople

Immune- Immune-

not able to get not able to get certain diseasescertain diseases

dispel dispel

Prove wrongProve wrong

Melissa Lape – Wilson Elementary

Sterilize-Sterilize-

To make free To make free from germsfrom germs

Melissa Lape – Wilson Elementary

When harmful microbes, or germs, enter the When harmful microbes, or germs, enter the body, they multiply and cause disease. body, they multiply and cause disease.

This is called infection.This is called infection.

Your body's defenses usually do a Your body's defenses usually do a killer job of squelching harmful killer job of squelching harmful microbes. But sometimes germs microbes. But sometimes germs multiply faster than the body can multiply faster than the body can handle and you get sick. People handle and you get sick. People come in contact with germs in come in contact with germs in many ways, including:many ways, including:

Contaminated blood:Contaminated blood: Harmful microbes Harmful microbes can enter your body through your can enter your body through your bloodstream. bloodstream.

Infected food or waterInfected food or water:: Dangerous Dangerous microbes can enter through your mouth if microbes can enter through your mouth if you drink untreated water or swallow you drink untreated water or swallow food that's uncooked or unwashed. food that's uncooked or unwashed.

DiseaseDisease-carrying creatures-carrying creatures: Harmful : Harmful microbes can enter your body through microbes can enter your body through close contact with infected creatures. close contact with infected creatures.

Germy air:Germy air: Dangerous microbes can Dangerous microbes can spread through the air and enter your nose spread through the air and enter your nose and mouth when you breathe.and mouth when you breathe.