Unit 3 P4 Causes And Spread Of Infection Research Paper
Causes and spread of infection.
Bacteria. These organisms are made up of just one cell. They have the power to divide so can multiply on their own. Some bacteria are harmless and can be of use in the aid of digestion and are found in the intestines. Other bacteria can be the cause of diseases. These bacteria have to find a way in to the body to be of harm and can make their way through the skin or be digested and attack our immune system.
Viruses. These micro-organisms are very tiny. They invade living normal cells and use these cells to multiply and produce other viruses like themselves. Eventually this kills off the normal cell and can make you ill.
Parasites. These are micro-organisms that live off other organisms or a host so they are able to survive. Some parasites don’t affect the host. But others grow, reproduce, or can even give off toxins that make the host sick resulting in a parasitic infection. They include; protozoan, fungi, and multi-cellular organisms.
Fungi. These are single celled organisms a little …show more content…
In the correct conditions micro-organism are able to grow, respire, and reproduce.
Sources of infection and how they enter the body: Food all bacteria need food to grow. Vegetables and raw meat from any animal are significant sources of contamination. Bacteria are always present in animal intestines. These can spread through meat products during slaughter or when a product is minced. . The bacteria can then get carried through the food chain. If the meat product is not cooked properly then the bacteria enter the body through the mouth and are absorbed through the digestive system once we have eaten them.
Water: Stored, untreated or incorrectly treated sources of drinking water carry pathogenic micro-organism like rivers, lakes and reservoirs which can cause infections. These enter the body by the mouth and enter the digestive system once we have drunk the contaminated
Bacteria. These organisms are made up of just one cell. They have the power to divide so can multiply on their own. Some bacteria are harmless and can be of use in the aid of digestion and are found in the intestines. Other bacteria can be the cause of diseases. These bacteria have to find a way in to the body to be of harm and can make their way through the skin or be digested and attack our immune system.
Viruses. These micro-organisms are very tiny. They invade living normal cells and use these cells to multiply and produce other viruses like themselves. Eventually this kills off the normal cell and can make you ill.
Parasites. These are micro-organisms that live off other organisms or a host so they are able to survive. Some parasites don’t affect the host. But others grow, reproduce, or can even give off toxins that make the host sick resulting in a parasitic infection. They include; protozoan, fungi, and multi-cellular organisms.
Fungi. These are single celled organisms a little …show more content…
In the correct conditions micro-organism are able to grow, respire, and reproduce.
Sources of infection and how they enter the body: Food all bacteria need food to grow. Vegetables and raw meat from any animal are significant sources of contamination. Bacteria are always present in animal intestines. These can spread through meat products during slaughter or when a product is minced. . The bacteria can then get carried through the food chain. If the meat product is not cooked properly then the bacteria enter the body through the mouth and are absorbed through the digestive system once we have eaten them.
Water: Stored, untreated or incorrectly treated sources of drinking water carry pathogenic micro-organism like rivers, lakes and reservoirs which can cause infections. These enter the body by the mouth and enter the digestive system once we have drunk the contaminated