Bacterial infections are normally treated with a course of antibiotics. Viruses are made up of genes and proteins that spread throughout the body by invading the body’s own cells so they can reproduce and multiply in the body. They use the body’s cells as a host because they are unable to multiply on their own. They are normally spread directly from human to human. Viruses can be very tough and there are not many effective medicines available for viral diseases.
1.2 Identify common illness and infections caused by bacteria, viruses, fungi and parasites. Viral and bacterial infection Viruses: Viruses can affect many different parts of the body or more than one body system at the same time for example a runny nose, sinus congestion, cough or body ache. Viruses can cause the classic common cold or even the flu, much
Plants, animals, humans, fish, birds and reptiles can all be host to parasites. Head lice, thread and other worms are all parasites; they survive by feeding on the blood of their host. Some bacteria and viruses could be considered parasites. 1:2 Identify common illnesses and infections caused by bacteria, viruses, fungi and parasites Bacterial Infections: Salmonellas/ food poisoning, tuberculosis/TB, MRSA, coccidiosis, food poisoning, dysentery, bronchitis, ear infections, tonsillitis. Viral
Many bacteria are parasitic on external and internal body surfaces; some of these invade the inner tissues and cause disease. Most parasites are obligate; i.e., they are unable to
When a virus enters the body, it enters some certain cells and takes over making the now host cell make the parts the virus needs to reproduce, the cells are eventually destroyed through this process. The most common viruses is the common cold, which has no cure. Fungi Mould, yeast and mushrooms are all types of Fungi. Fungi live in the air, water, soil and on plants and they can live in the body, usually without causing illness. Some fungi have beneficial uses.
It is stated on www.biologyinfo.com that, “Not all bacteria are harmful. In fact, less than 1 percent cause disease, and some bacteria that live in your body are actually good for you”. However there are some bad bacteria which cause diseases such as, MRSA, strep throat, tuberculosis, anthrax and urinary tract infections. Viruses are a great deal smaller than bacteria. They are contained in a protein coating which makes them more difficult to destroy.
Viruses are small infectious agents that replicate only inside the living cells of other organisms, Viruses infect all types of life forms from animals, plants and bacteria. The average of virus is about one hundredth the size of average bacterium. Viruses spread in many ways; viruses in animals can be carried by blood-sucking insects. Viruses can be carried in the air and spread by coughing and sneezing, food, water and person to person contact are also means of transmitting a virus. Several viruses inc. H.I.V.
Parasites survive by feeding from its host. 1.2 Bacteria, common illnesses caused by bacteria are MRSA, Salmonella, Legionnaires disease, food poisoning, Pneumonia and Bronchitis. Viruses, common viruses are A common cold, measles, chicken pox and HIV. Fungi, common fungi are, Athletes foot, Ringworm and yeast infection. Parasites, common parasites are, Malaria and worms.
Most viruses are too small to be seen directly with a light microscope. Viruses infect all types of organisms, from animals and plants to bacteria .Viruses are not considered living because they are unable to reproduce.All viruses have genes made from either DNA or RNA, long molecules that carry genetic information; all have a protein coat that protects these genes; and some have an envelope of fat that surrounds them when they are outside a cell. Fungi: These are Eukaryotes..when compared to bacteria(prokaryote) and virus.Like plants and animals, fungi are eukaryotic multicellular organisms.Fungi are multi-cellular organisms and parasites are any vectors that require a living host in order to live/reproduce. Both bacteria and fungi can survive on their own, while viruses have to infect a host to survive Parasites: A parasite is an organism that lives on or inside another organism to the detriment of the host organism. These are of various forms and types.A parasite is an organism that lives on or in a host and gets its food from or at the expense of its host.
P1: Explain how infections are caused by different pathogens: * Bacteria * Fungi * Protozoa * Parasites * Viruses Bacteria: Pathogens are microorganisms such as viruses or bacteria and these cause diseases in the body. Bacteria is a pathogen and are microscopic living cells that multiply at a rapid speed, once inside the body they spread toxins making the individual ill. Bacteria can cause diseases such as; * food poisoning * cholera * typhoid * whooping cough * gonorrhoea - a sexually transmitted disease Bacteria can travel in many things such as food, water or even through the air. For example if an individual is sitting next to someone that keeps on sneezing, the individual will eventually