This document defines disease and classifies major types as infectious, deficiency, hereditary, and physiological. It then focuses on three global diseases: HIV/AIDS, cancer, and coronavirus. For each, it discusses causes, symptoms, prevention methods, and how they spread. HIV/AIDS damages the immune system and can lead to AIDS. Cancer is caused by abnormal cell growth. Coronaviruses cause illnesses like COVID-19 with symptoms like fever and cough. Prevention strategies for all three include avoiding risk factors, practicing good hygiene, and social distancing. The document also briefly mentions some other diseases.

1. Diseases: HIV/AIDS,
Coronavirus; others diseases

2. Definition
Disorder of structure or function in a
human, animal, or plant, especially one
that produces specific symptoms or that
affects a specific location and is not
simply a direct result of physical injury.

3. 1. Infectious diseases
2. Deficiency diseases
3. Hereditary diseases (including both genetic
diseases and non-genetic hereditary diseases)
4. Physiological diseases.
Diseases can also be classified in other ways, such as
1. Communicable versus
2. Non-communicable diseases.
Types of Diseases There are four
main types of disease:

4. Global Diseases
HIV/AIDS and
CORONAVIRUS

5. Global Diseases
HIV/AIDS

6. HIV/AIDS
Acquired immunodeficiency syndrome (AIDS)
is a chronic, potentially life-threatening
condition caused by the human
immunodeficiency virus (HIV).

7. Progression to AIDS
HIV typically turns into AIDS in about 8 to 10
years. When AIDS occurs, your immune system
has been severely damaged.

8. The signs and symptoms of AIDS
 Sweats
 Chills
 Recurring fever
 Chronic diarrhea
 Swollen lymph
glands
 Persistent white
spots or unusual
lesions on your
tongue or in your
mouth
 Persistent,
unexplained fatigue
 Weakness
 Weight loss
 Skin rashes or
bumps

9. Causes: How HIV spreads
 Sex
 Sharing Needles
 Blood Transfusion
 Pregnancy
 Delivery
 Breast Feeding

10. HIV/AIDS: Prevention
 Use treatment as prevention (TasP).
 Use post-exposure prophylaxis (PEP) if you've been exposed
to HIV
 Use a new condom every time you have sex.
 Consider preexposure prophylaxis (PrEP).
 Tell your sexual partners if you have HIV
 Use a clean needle.
 If you're pregnant, get medical care right away
 Consider male circumcision.

11. Global Diseases
CANCER

12. HIV/AIDS
Cancer refers to any one of a large number of
diseases characterized by the development of
abnormal cells that divide uncontrollably and
have the ability to infiltrate and destroy normal
body tissue.

13. The signs and symptoms of CANCER
Fatigue
Lump or area of thickening
that can be felt under the
skin
Weight changes, including
unintended loss or gain
Skin changes, such as
yellowing, darkening or
redness of the skin, sores
that won't heal, or changes
to existing moles
Changes in bowel or
bladder habits
Persistent cough or trouble
breathing
Difficulty swallowing
Hoarseness
Persistent indigestion or
discomfort after eating
Persistent, unexplained
muscle or joint pain
Persistent, unexplained
fevers or night sweats
Unexplained bleeding or
bruising

14. Causes: How HIV spreads
 Cancer is caused by changes (mutations)
to the DNA within cells.

15. CANCER: Prevention
Stop smoking.
Avoid excessive sun exposure.
Eat a healthy diet.
Exercise most days of the week.
Maintain a healthy weight.
Drink alcohol in moderation, if you choose to drink.
Schedule cancer screening exams.
Ask your doctor about immunizations.

16. Global Diseases
Coronavirus

17. Coronavirus
Coronaviruses are a family of viruses that can
cause illnesses such as the common cold,
severe acute respiratory syndrome (SARS) and
Middle East respiratory syndrome (MERS).

18. Symptoms
Fever
Cough
Tiredness

19. Early symptoms of COVID-19
Shortness of breath or difficulty breathing
Muscle aches
Chills
Sore throat
Runny nose
Headache
Chest pain

20. The risk of serious illness from COVID-
19 include:
 Serious heart diseases, such as heart failure, coronary artery
disease or cardiomyopathy
 Cancer
 Chronic obstructive pulmonary disease (COPD)
 Type 2 diabetes
 Severe obesity
 Chronic kidney disease
 Sickle cell disease
 Weakened immune system from solid organ transplants

21. Other conditions may increase the risk of
serious illness, such as:
 Asthma
 Liver disease
 Chronic lung diseases such as cystic fibrosis
 Brain and nervous system conditions
 Weakened immune system from bone marrow transplant, HIV or some
medications
 Type 1 diabetes
 High blood pressure

22. Prevention
 Avoid large events and mass gatherings.
 Avoid close contact (within about 6 feet, or 2 meters) with anyone who is sick or
has symptoms.
 Stay home as much as possible and keep distance between yourself and others
(within about 6 feet, or 2 meters), especially if you have a higher risk of serious
illness. Keep in mind some people may have COVID-19 and spread it to others,
even if they don't have symptoms or don't know they have COVID-19.
 Wash your hands often with soap and water for at least 20 seconds, or use an
alcohol-based hand sanitizer that contains at least 60% alcohol.
 Cover your face with a cloth face mask in public spaces, such as the grocery store,
where it's difficult to avoid close contact with others, especially if you're in an area
with ongoing community spread. Only use nonmedical cloth masks — surgical
masks and N95 respirators should be reserved for health care providers.

23. Prevention
 Cover your mouth and nose with your elbow or a tissue when you
cough or sneeze. Throw away the used tissue. Wash your hands right
away.
 Avoid touching your eyes, nose and mouth.
 Avoid sharing dishes, glasses, towels, bedding and other household
items if you're sick.
 Clean and disinfect high-touch surfaces, such as doorknobs, light
switches, electronics and counters, daily.
 Stay home from work, school and public areas if you're sick, unless
you're going to get medical care. Avoid public transportation, taxis
and ride-sharing if you're sick.

24. Some Other Diseases

IDS
 TB
 Hepatitis
 Dengue Fever
 Cholera
 Ebola Virus
 Hantavirus
 Polio, Sadly vaccine
 Swine Flue

25. The End