What is the biggest source of infection?
Person to person spread. This is the most common way that we get an infectious disease. Germs can spread from person to person through: the air as droplets or aerosol particles.
What are the main causes of infection?
What causes infectious diseases?
- Viruses that invade and multiply inside healthy cells.
- Bacteria, or small, single-celled organisms capable of causing disease.
- Fungi, which include many different kinds of fungus.
- Parasites, which are organisms that live inside host bodies causing sickness.
What is the most common human infection?
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.
What is the most common route of contamination?
Contact transmission is the most common form of transmitting diseases and virus. There are two types of contact transmission: direct and indirect. Direct contact transmission occurs when there is physical contact between an infected person and a susceptible person.
Which one of the following is an infectious disease?
So, the correct answer is ‘Tuberculosis’.
What are the causes and spread of infection?
Infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another. This can happen when an individual with the bacterium or virus touches, kisses, or coughs or sneezes on someone who isn’t infected.
What are the 4 main routes for infection to enter the body?
Microorganisms capable of causing disease—or pathogens—usually enter our bodies through the eyes, mouth, nose, or urogenital openings, or through wounds or bites that breach the skin barrier. Organisms can spread, or be transmitted, by several routes.
What are the 2 most common viruses?
Some of the most common viral infections include:
- Common cold.
- Influenza (flu)
- Herpes.
- Chickenpox.
- Mumps.
- Human papillomavirus (HPV)
- Measles.
- Rubella.
What are 7 common sources of infection?
Common sources of infection Sources, e.g. airborne, blood borne, sexually transmitted, fecal, oral, environment, stagnant water, warm-water systems, animals.