Disease and Its Impact on Humans
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DISEASE AND ITS IMPACT ON HUMANS | DISEASES |
| DANICA DE FREITAS | 12/21/2011 | |
Disease and its impact on humans
TABLE OF CONTENTS
WHAT IS A DISEASE? MAIN TYPES OF DISEASES
DIABETES AND HYPERTENSION
WHAT IS A VECTOR?
STD’S
ROLE OF BLOOD
IMMUNITY
EFFECTS OF DRUG ABUSE
SOCIAL AND ECONOMIC IMPLICATIONS OF DISEASE
IN PLANTS AND ANIMALS
What is a disease?
Disease is defined as a disorder with a specific cause (which may or may not be known) and recognizable signs and symptoms.
THERE ARE FOUR (4) MAIN TYPES OF DISEASES: * PATHOGENIC * DEFICIENCY * HEREDITY * PHYSIOLOGICAL
Pathogenic diseases are caused by organisms (parasites). E.g. micro-organisms causing STDs, malaria, smut; macro-organisms: head louse, blood fluke. Pathogenic diseases can be caused by bacteria, viruses, fungi etc.
Here is a short list of pathogenic diseases due to pathogenic bacteria that infect human: * ATHLETE’S FOOT * CHOLERA * TUBERCULOSIS * TETANUS * MALARIA * CHICKENPOX * PNEUMONIA
Summary of some pathogenic diseases DISEASE | TYPE | SYMPTOMS | PREVENTION | Athlete’s foot | Fungus | Red, itchy areas on the feet | Keep feet dry | Chickenpox | Virus | Rash all over body | Stop scratching, isolation | Cholera | Bacterium | Diarrhoea | Fluid replacement | Diphtheria | Bacterium | By air, or contact with bleeding | Inject antitoxin | Malaria | Protist | Fever, sweating, collapse | Anti-malaria drugs | Tetanus | Bacterium | ‘lock jaw’, muscular spasms | Inject antibodies | Tuberculosis | Bacterium | Through the air | Rest, antibiotics |
Deficiency diseases are caused by lack of essential nutrients, e.g. in animals: anaemia, goitre, scurvy.
Vitamins Needed in the Body Vitamins | Sources | Use in body | Deficiency disease | A | Green vegetables and fruits | Part of visual purple in rods of the retina | Night blindness | B(there are at least twelve different B vitamins) |
DISEASE AND ITS IMPACT ON HUMANS | DISEASES |
| DANICA DE FREITAS | 12/21/2011 | |
Disease and its impact on humans
TABLE OF CONTENTS
WHAT IS A DISEASE? MAIN TYPES OF DISEASES
DIABETES AND HYPERTENSION
WHAT IS A VECTOR?
STD’S
ROLE OF BLOOD
IMMUNITY
EFFECTS OF DRUG ABUSE
SOCIAL AND ECONOMIC IMPLICATIONS OF DISEASE
IN PLANTS AND ANIMALS
What is a disease?
Disease is defined as a disorder with a specific cause (which may or may not be known) and recognizable signs and symptoms.
THERE ARE FOUR (4) MAIN TYPES OF DISEASES: * PATHOGENIC * DEFICIENCY * HEREDITY * PHYSIOLOGICAL
Pathogenic diseases are caused by organisms (parasites). E.g. micro-organisms causing STDs, malaria, smut; macro-organisms: head louse, blood fluke. Pathogenic diseases can be caused by bacteria, viruses, fungi etc.
Here is a short list of pathogenic diseases due to pathogenic bacteria that infect human: * ATHLETE’S FOOT * CHOLERA * TUBERCULOSIS * TETANUS * MALARIA * CHICKENPOX * PNEUMONIA
Summary of some pathogenic diseases DISEASE | TYPE | SYMPTOMS | PREVENTION | Athlete’s foot | Fungus | Red, itchy areas on the feet | Keep feet dry | Chickenpox | Virus | Rash all over body | Stop scratching, isolation | Cholera | Bacterium | Diarrhoea | Fluid replacement | Diphtheria | Bacterium | By air, or contact with bleeding | Inject antitoxin | Malaria | Protist | Fever, sweating, collapse | Anti-malaria drugs | Tetanus | Bacterium | ‘lock jaw’, muscular spasms | Inject antibodies | Tuberculosis | Bacterium | Through the air | Rest, antibiotics |
Deficiency diseases are caused by lack of essential nutrients, e.g. in animals: anaemia, goitre, scurvy.
Vitamins Needed in the Body Vitamins | Sources | Use in body | Deficiency disease | A | Green vegetables and fruits | Part of visual purple in rods of the retina | Night blindness | B(there are at least twelve different B vitamins) |
Bibliography: www.blurtit.com www.livestrong.com www.wikipedia.org/wiki/infectious_disease www.scienceray.com CXC biology text book