Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites and can spread between individuals infectious diseases can be spread from one person to another, for example through contact with bodily fluids, by aerosols (through coughing and sneezing), or via a vector,. Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites many organisms live in and on our a common way for infectious diseases to spread is through the direct transfer of bacteria, viruses or other germs from one person to another this can occur when an. Sometimes the symptoms of the two can be very similar for example, runny nose , cough, headache, and fatigue can occur with the common cold (virus) and with a sinus infection (bacteria) a doctor may use the presence of other symptoms ( such as fever or body aches), the length of the illness, and certain. Viruses - are disease producing agents far smaller than bacteria they are 12 identify common illnesses and infections caused by bacteria, viruses, fungi and parasites systemic infection – affects a number of organs or tissues or affects the whole body eg type 2 diabetes, aids and hyper tension. 1 unit title: causes and spread of infection unit sector reference: ic02 level: 2 credit value: 2 guided learning hours: 20 unit accreditation number: h/501/ exemplification 1 understand the causes of infection 11 identify the differences between bacteria, viruses, fungi and parasites 12 identify common illnesses. Although the vast majority of bacteria are harmless or beneficial to one's body, a few pathogenic bacteria can cause infectious diseases the most common bacterial disease is tuberculosis, caused by the bacterium mycobacterium tuberculosis, which affects about 2 million people mostly in sub-saharan africa pathogenic. Identification of the infection will usually be done by medical personnel different categories of pathogens can infect humans the pathogens causing the diseases covered in this manual include viruses, bacteria, rickettsiae, fungi, proto- zoa, and helminths (worms) all pathogens go through a lifecycle, which takes the.
Agents (eg, certain viruses, bacteria, fungi, protozoans, worms, and arthropods) capable of producing disease are pathogens the term pathogenicity refers to the ability of a parasite to enter a host and produce disease the degree of pathogenicity—that is, the ability of an organism to cause infection—is known. But antibiotics don't fight viral infections bacteria, viruses, and parasites can cause a wide variety of illnesses they can infect any organ in the body viruses are often the cause of respiratory illnesses (such as the common cold) and digestive illnesses (such as diarrhea) bacteria can infect any part of the body, but often. Bacterial diseases information including symptoms, diagnosis, treatment, causes, videos, forums, and local community support other types of microorganisms include viruses, some fungi, and some parasites common pathogenic bacteria and the types of bacterial diseases they cause include.
Fast facts on infection infection is the effect of a foreign organism in the body types of infection include bacterial, fungal, viral, protozoan, parasitic, and prion disease they are classified by the type of organism causing the infection infections can range from mild inflammation in one person to an epidemic. Here are some diseases caused by viruses: chicken pox (affects skin and nerves) common cold influenza, flu measles (affects skin and lungs) mumps (affects salivary glands) rubella, german measles microbes cause disease when they are able to reproduce in the body they produce harmful substances called toxins,.
Bacteria and viruses are the most common offenders parasites, fungi, and other organisms can infect the central nervous system (cns), although more rarely location: the infecting germ causes an inflammation of the affected area depending on the location of the infection, different names are given to the diseases. 2 identify common illnesses and infections caused by bacteria, viruses, fungi and parasites - bacteria: food poisoning, bubonic plague, bacterial meningitis, cholera, diphtheria, rheumatic fever one of the many functions of the skin is to act as a barrier against infection lack of food hinders bacterial growth bites cold. Fungi are everywhere there are millions of different fungal species on earth, but only about 300 of those are known to make people sick fungal diseases are often caused by fungi that are common in the environment fungi live outdoors in soil and on plants and trees as well as on many indoor surfaces.
The symptoms and severity of food poisoning vary, depending on which bacteria or virus has contaminated the food parasites parasites are organisms that in the united states, the most common foodborne parasites are protozoa, roundworms, and tapeworms foodborne illnesses: what you need to know ( fda.
Causes and spread of infection understand the causes of infection q11 identify the differences between bacteria, viruses, fungi and parasites all 4 are q12 identify common illnesses and infections caused by bacteria, viruses, fungi and parasites illnesses/infections caused by : bacteria: salmonellosis, tuberculosis. A few harmful microbes, for example less than 1% of bacteria, can invade our body (the host) and make us ill microbes cause infectious diseases such as flu and measles there is also strong evidence that microbes may contribute to many non–infectious chronic diseases such as some forms of cancer and coronary heart.
The groups of organisms that cause infectious diseases are categorized as bacteria, viruses, fungi, and parasites the pneumococcus is the most common cause of lobar pneumonia, the disease in which one or more lobes, or segments, of the lung become solid and airless as a result of inflammation. Many bacterial infections can be treated with antibiotics, but they are useless against viral infections many human illnesses are caused by infection with either bacteria or viruses most bacterial however, some viruses – such as those that cause the common cold – are capable of mutating from one person to the next. Skin diseases are caused by viruses, rickettsiae, bacteria, fungi, and parasites this chapter focuses on the common bacterial diseases of skin viral infections are also described, but of the cutaneous fungal diseases, only nail infections are included the other fungal diseases are described in the mycology section. Unit 20 causes and spread of infection hsc3045 health and social care level 3 diploma unit 20 causes and spread of infection 1 1 see worksheet 1 2 identify common illnesses and infections caused by bacteria, viruses, fungi and parasites bacteria – sore throat, tuberculosis, bubonic plague, whooping cough.