How can we fight infectious diseases?
Prevent the spread of infectious disease
- Immunise against infectious diseases.
- Wash and dry your hands regularly and well.
- Stay at home if you are sick.
- Cover coughs and sneezes.
- Clean surfaces regularly.
- Ventilate your home.
- Prepare food safely.
- Practise safe sex.
What defenses does the human body have to combat infectious disease?
Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract. to identify and eliminate organisms that get through the body’s natural barriers.
Which are the infectious diseases?
Infectious diseases can be any of the following:
- Chickenpox.
- Common cold.
- Diphtheria.
- E. coli.
- Giardiasis.
- HIV/AIDS.
- Infectious mononucleosis.
- Influenza (flu)
Which protects the body against infectious disease and foreign invaders?
Your immune system is a large network of organs, white blood cells, proteins (antibodies) and chemicals. This system works together to protect you from foreign invaders (bacteria, viruses, parasites, and fungi) that cause infection, illness and disease.
How does the immune system fight diseases?
If an antigen enters the body and B-cells recognize it (either from having had the disease before or from being vaccinated against it), B-cells will produce antibodies. When antibodies attach to an antigen (think a lock–key configuration), it signals other parts of the immune system to attack and destroy the invaders.
Who most common infectious diseases?
So, without further ado, here are the five most common infectious diseases.
- Hepatitis B. According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population.
- Malaria.
- Hepatitis C.
- Dengue.
- Tuberculosis.
What is infectious agent?
Infectious agents are organisms that are capable of producing infection or infectious disease. They include bacteria, fungi, viruses, and parasites.
How does blood defend against diseases?
Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body. Blood also fights infections, and carries hormones around the body.
How does the body fight a virus?
Antibodies are proteins that recognise and bind parts of viruses to neutralise them. Antibodies are produced by our white blood cells and are a major part of the body’s response to combatting a viral infection. Antigens are substances that cause the body to produce antibodies, such as a viral protein.
What are infectious diseases?
Infectious diseases are the diseases of microbial pathogens, namely viruses, bacteria, fungi, and parasites. These may be transmittable or non-communicable.
Are We winning the fight against infectious disease?
But infectious disease remains the leading cause of death worldwide and the third leading cause in the United States. While we may be winning some old battles, we are struggling with some new adversaries—emerging infectious diseases such as Ebola, hantavirus infection, new strains of tuberculosis (TB), AIDS, and Lassa fever, to name a few.
Is infectious disease becoming a global crisis?
In fact, the World Health Organization (WHO) has labeled the growing threat of infectious disease a global crisis. The time has come to replace complacency with a new sense of urgency—to launch a renewed, unified, global effort against infectious disease.
What is a disease?
Diseases are disorders that affect either a part of, or the entire body by impeding bodily functions. Diseases can be caused due to infectious or non-infectious causes.