Grade 4

1. Communicable Diseases

2. Disease
 An illness or any harmful condition in your body.
 A disease is a particular abnormal condition that
negatively affects the structure or function of all or part of
an organism, and that is not due to any immediate
external injury.

3. Communicable Diseases
 is one that is spread from one person to another person through
a variety of ways that includes contact with blood and bodily
fluids, breathing in an airborne virus, or by being bitten by an
insect.
 a kind of disease caused by the presence of germs or virus that
are easily transferred from one person to another or from a
bite of an infected animal.

4. 9 Communicable Diseases

5. Cold
 is a common infection caused by a virus.
 is a viral infectious disease of the upper
respiratory tract that primarily affects the
nose.

6. Influenza
 it is a disease caused by a virus
that attacks the upper respiratory
tract.

7. Malaria
 a disease caused by a parasite.
The parasite is transmitted to
humans through the bites of
infected mosquitoes that is called
Anopheles mosquito
Symptoms : fever, chills, headache,
nausea and vomiting, muscle pain
and fatigue, sweating, chest or
abdominal pain, cough

8. Dengue
 is a disease caused by a virus
transferred to people by the bite of
the mosquito called Aedes aegypti
Symptoms: typically begin three to
fourteen days after infection. These
may include a high fever, headache,
vomiting, muscle and joint pains, and a
characteristic skin rash.

9. Strep throat
 is a painful infection of the throat
caused by streptococcus bacteria
Symptoms of strep throat include: a
sudden fever, especially if it’s 101˚F
(38˚C) or higher, a sore, red throat with
white patches, a headache, chills,
a loss of appetite, swollen lymph
nodes in the neck, trouble swallowing

10. Measles
 is a highly contagious, serious disease caused
by a virus called rubeola virus
 Signs and symptoms
 The first sign of measles is usually a high fever,
which begins about 10 to 12 days after exposure
to the virus, and lasts 4 to 7 days. A runny nose,
a cough, red and watery eyes, and small white
spots inside the cheeks can develop in the initial
stage. After several days, a rash erupts, usually
on the face and upper neck. Over about 3 days,
the rash spreads, eventually reaching the hands
and feet. The rash lasts for 5 to 6 days, and then
fades. On average, the rash occurs 14 days after
exposure to the virus (within a range of 7 to 18
days).

11. Gastrointestinal
infections
 is a disease that affects both
stomach and intestines caused by
campylobacter
 symptoms like
vomiting, severe abdominal cramps,
and diarrhea

12. Whooping
cough
 is a disease that usually affects
children and causes severe coughing
and difficulty in breathing.

13. Coronavirus disease (COVID-19)
 is an infectious disease caused by a newly
discovered coronavirus.
 most people infected with the COVID-19
virus will experience mild to moderate
respiratory illness and recover without
requiring special treatment. Older people,
and those with underlying medical problems
like cardiovascular disease, diabetes, chronic
respiratory disease, and cancer are more
likely to develop serious illness.

14. Learn these healthy habits to protect yourself from disease and prevent germs
and infectious diseases from spreading.
1. Handle & Prepare Food Safely
2. Wash Hands Often
3. Clean & Disinfect Commonly Used Surfaces
4. Cough & Sneeze Into Your Sleeve
5. Don't Share Personal Items
6. Get Vaccinated
7. Avoid Touching Wild Animals
8. Stay Home When Sick
9. Wear mask and face shield
10. Stay away from infected people
11. Observe social distancing