Microbiology Task 10 Fomite

contaminated water or food
17. For each pathway listed in question #16, explain the relationship of the mode of transmission to the virulence of the invader.

Write down the website. Give a brief description of the relevance of this site to your study

Infection is when foreign bodies such as bacteria, fungi and parasites invade your body these germs can cause disease and can even lead to amputation or even death in the host body. An infection may cause no symptoms or it may cause symptoms where you become really symptomatic and be hospitalized.

1. Understanding epidemiologic concepts of the chain of transmission of organisms from host to victim, describe how EH could have been infected.

It isn’t transmitted as an infectious disease. It’s based around the actual spreading of the disease its self and the areas of the body its spread to and the stage it’s currently at.

2. Breaks in the skin. One of the many functions of the skin is to act as a barrier against infection. Anything that penetrates the skin, or for that matter the mucous membrane that lines the mouth or nose, provides a route for infection to enter. Typically, bites, scratches, puncture wounds by needles etc increase the risk of infection.

Provide some examples of sources of infection for novel diseases, including the mode of transmission for WNV. Why is this concern?

Infections can be spread through many things, these include; food borne infection, person to person, water borne infection, airborne infection, insect borne infection and fomites.

The sources of infection can be divided in two main groups. These are exogeneous and endogeneous sources. A source of the infection is

The purpose of this lab was to identify two unknown bacteria cultures using various differential tests. The identification of these unknown cultures was accomplished by separating and differentiating possible

Citrobacter Freundii is a species of bacteria that can be potentially harmful to humans. It is known to cause meningitis by protruding into the brain and replicating itself (1). The Citrobacter species has also been found as a cause of some urinary tract infections, diarrhea, and even gastrointestinal diseases and symptoms (3). C. Freundii can be located in a wide variety of soils and water (3). Lastly, it is also the cause of many nosocomial infections due to its presence in water (1).

Respiratory (airborne infections breathed in), digestive (within foods/ drinks), blood circulation (via broken skin/ wounds), body fluids (sexually transmitted diseases, cross contamination, poor hygiene).

The way diseases spread is fairly uniform from disease to disease, interaction with foreign land or those who dwell on that land. Thus, foreign trade and travel, boat, ship, land, or plane, is a crucial tool in the spread of a disease, turning it into a national or even worldwide

A communicable disease chain is the mechanism by which an infective agent or pathogen is transmitted. The chain requires an infective agent, a source of infection, a mode of transmission and a host. An example of an infective agent could be bacteria, a virus, fungus, protozoan or helminth. The source of infective agents can be transmission from host to host, an infected human or animal, insects, soil or livestock. The mode of transmission is how the infective agent is carried from host to host. Transmission can be by air, ingestion or physical contact. To complete a life cycle or to replicate, the infective agent requires a host.

If a wound is not managed well, then risk on infection can occur. A wound needs to be properly cleaned and bandaged. Sometimes depending on the wound, it is necessary to allow air to get to the wound to aid in healing. When wounds reach the dermis, that is where more infection risk occurs. The dermis is deeper under the skin where nerves and tissues are. It is important to sterilize, keep hands clean when changing out bandages, and making sure to change out bandages to keep the wound