Causes and Spread of Infection



Identification of the difference between viruses, fungi, bacteria and parasites 
Bacteria. Bacteria refer to the smallest living and non-living organism that multiply by themselves.  Bacteria can be useful and dangerous for health as they spread infection and diseases and generally treated with antibiotics.

Virus. Viruses are made up of protein and genes that spread throughout the body by invading the body cells to increase their growth. The virus spread from human to human, and the treatment of viral disease is not much useful.
Fungi. Fungi grow in moist and warm places, and harmful for human bodies such as coughing, itching, and wheezing. Some fungi are used for the human body such as penicillin.
Parasites. Parasites need another organism for their survival and cause pathogenic parasites.
Role of viruses, fungi, bacteria, and parasites in spreading infection and illness
Bacteria. Tuberculosis, bronchitis, gonorrhoea, food poisoning, coccidiosis, MRSA, salmon losses, strep throat/tonsils, syphilis, and Chlamydia.
Virus. Common cold, ear infection, influenza, pneumonia, HIV/AIDS, dengue, herpes, West Nile Virus, warts encephalitis.
Fungi. Valley fever, yeast infection ringworm, athlete's foot.
Parasites. Worms, malaria, (trypanosomiasis), schistosomiasis, sleeping sickness, and leishmaniasis.
Colonisation and infection
Infection refers to the invasion of the body tissues due to disease and results in a microorganism.
Colonisation refers to the multiplication or growth of microorganism without the invasion of body tissues (Ritchie, Sanderson, Kilbane, & Routledge, 2003).
Systematic infection vs localised infection
The systematic infection refers to the infection breakout, within the whole body through bloodstreams such as Septicaemia. Whereas localized infection means that, the virus has a breakout within the specific parts of the body such as ulcer and particular cut (Sanderson, Kennedy, Ritchie, and Goodwin, 2002).
Poor practices and development of infectious diseases
The poor practices that may lead to spread of disease are not wearing the personal hygienic clothes, not washing your hands, not covering your nose and mouth, and not clearing your surrounded area (Ritchie, Sanderson, Kilbane, & Routledge, 2003).
How poor practices can help in ons's professional practice
The understanding of poor practices can be applied to own profession practices by the self-evaluation process. The duty of mine as a professional is to ensure that the if I am following the practices related to hygiene condition appropriately, such as washing hands before and after completing tasks, know how to use PEE, my hygiene is appropriate, nails are trimmed, and hairs are neat.
Conditions needed for the progression of micro-organism
The bacteria probably grow in moist, dark and warm areas with the neutral PH balance. The protein and sugar are the food for their survival and growth. The time they need to grow is 4 hours on average. Unfortunately, the human body is the most optimal place for bacterial growth. In the human body, many cranial and nooks are dark and full of sweat. Therefore these are needs to be clean for reducing the risk of infection (Ritchie, Sanderson, Kilbane, & Routledge, 2003).
How the infective agent enter in human body
The primary pathways for an ineffective agent to enter in the human bodies are a digestive system, skin break, and respiratory system. There are some other means for these agents to enter into human organs such as genital tracts, and conjunctiva.
Common Sources of infections
The infection diseases are alarming for human bodies, and there are several sources of infection, among them the most common are listed below.
    Poor hand hygiene
    The already infected
    PPE workplace/uniform
    Cupboard, wall, floor and other surface area
    Equipment not used or sterilised appropriately
The ways by which infective agents can be transmitted to the body
The infected agent transmits to a person through bites from animals and insects. Some infectious diseases may transmit from one person to another person through transplacental transmission (pregnant women to the fetus) and touch, kissing, biting or sexual intercourse. Person to person transmission of infection is called direct transmission. The infectious diseases may transmit to the human body through indirect transmissions such as ingestion of contaminated water and food (Ritchie, Sanderson, Kilbane, & Routledge, 2003).
Factors that might increase the risk of infections
The risk factors that increase the likeliness of the disease are
    Malnutrition
    Age
    Obesity
    Poor hygienic condition
    Skin integrity
    Skinfold