Transcript common communicable diseases lesson 2

BELL WORK
Write about how you could prevent
communicable diseases from
spreading.
COMMUNICABLE DISEASES
COMMON COMMUNICABLE DISEASES
OBJECTIVES
• explain what causes colds and how they
can be treated.
• identify some common communicable
diseases.
• describe the symptoms of some common
communicable diseases.
WHEN YOU HAVE A COLD
GET PLENTY OF REST
SOME OTC MEDICINES CAN HELP
RELIEVE COLD SYMPTOMS
STAY HOME AT LEAST 24 HOURS AFTER
COLD SYMPTOMS APPEAR
FLU SYMPTOMS
FEVER
HEADACHES
MUSCLE ACHES
RESPIRATORY PROBLEMS
FLU
The flu is spread by one of three main types
of influenza viruses, each with several
different strains.
Scientists try to anticipate which strains will
spread fastest and create enough flu
vaccines for the following year.
CONTAGIOUS PERIOD
Often, the contagious period of a
communicable disease includes a length
of time before the infected person starts to
show symptoms.
contagious period The length of time that
a particular disease can be spread from
person to person
MONONUCLEOSIS
Mononucleosis is spread through contact
with the saliva of an infected person.
mononucleosis A viral disease
characterized by a severe sore throat and
swelling of the lymph gland
Mono is also spread through sharing
contaminated eating utensils and drinking
glasses.
HEPATITIS
There are three types of hepatitis.
hepatitis A viral disease of the liver
characterized by yellowing of the skin and
the whites of the eyes
HEPATITIS
Hepatitis
A
• Most commonly spread through food or water that
has been contaminated with human waste.
• Vaccines can protect people from this type.
Hepatitis
B
• Most commonly spread through contact with
contaminated blood or other body fluids.
• Vaccines can protect people from this type.
Hepatitis
C
• Most commonly spread through contact with
contaminated blood or other body fluids.
• Medications can help treat people with this type.
TUBERCULOSIS
Because tuberculosis
spreads easily through the
air, people are regularly
tested for the disease.
tuberculosis A bacterial
disease that usually affects
the lungs
Sometimes people who test
positive for TB show no
symptoms.
PNEUMONIA
Pneumonia can be caused
by a virus or bacteria.
pneumonia A serious
inflammation of the lungs
Pneumonia can be spread
through direct or indirect
contact.
STREP THROAT
Left untreated, strep throat can lead to
serious complications, such as heart or
kidney damage.
strep throat A sore throat caused by
streptococcal bacteria
Strep throat is spread through direct or
indirect contact and can be easily treated
with antibiotics.
STREP THROAT
Symptoms of strep throat include a red and
painful throat, fever, and swollen lymph
nodes in the neck.