Why do we fall ill

Why do we fall ill

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  Presentation On •Why do wefall ill?
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  Chronic Diseases • ChronicDisease is a long-lasting condition that can be controlled but not cured.
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  Acute illnesses are thosethat will eventually resolve without any medical supervision (colds, teething).
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  Infectious diseases • Infectiousdiseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful, but under certain conditions, some organisms may cause disease.
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  Non infectious diseases Commonly known as non-communicable diseases, abbreviated as NCDs, non- infectious diseases are those that are caused by factors such as genetics, environment, and lifestyle, and not by disease-causing organisms. Non- infectious diseases do not pass on from one person to another.
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  Infectious agents anddiseases caused by them Virus • A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to bacteria and archaea.
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   The commoncold) is a viral infectious disease of the upper respiratory tract which primarily affects the nose.
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  INFLUENZA  Influenza, commonly knownas "the flu", is an infectious disease caused by the influenza virus. Symptoms can be mild to severe.The most common symptoms includ e: a high fever, runny nose, sore throat, muscle pains, headache, coughing , and feeling tired. These symptoms typically begin two days after exposure to the virus and most last less than a week.
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  BACTERIA  Bacteria constitutea large domain of prokaryotic micr oorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs,radioactive waste,and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relatio nships with plants and animals. They are also known to have flourished in manned spacecraft.
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   Typhoid fever— also known simply as typhoid— is a common worldwide bacterial disease transmitted by the ingestion of food or water contaminated with the feces of an infected person, which contain the bacterium Salmonella enterica subsp. enteric a, serovarTyphi
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  Cholera  Cholera isan infection of the small intestine caused by the bacterium Vibrio cholerae.
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   A fungusis any member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds (Briti sh English: moulds), as well as the more familiar mushrooms.
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  Athlete Foot  Athlete'sfoot is a common and contagious dermato phytic fungal infection of the skin that causes scaling, flaking, and itching of the affected areas.
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   Dermatophytosis isa clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle.
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  Protozoa • In some biologicaltaxonomy sch emes, Protozoa are a diverse group of mostly motile unicellula r eukaryotic organisms, but the term is no longer commonly used in modern taxonomy.
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  MALARIA  Malaria isa mosquito-borne infectious disease of humans and other animals caused by parasitic protozoans of the Plasmodium type. Malaria causes symptoms that typically include fever, fatigue, vomiting and headaches. In severe cases it can cause yellow skin, seizures, coma or death.
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  Kala Azar • Visceral leishmaniasis(VL), also known as kala-azar, black fever, and Dumdum fever,is the most severe form ofleishmaniasis. Leishmaniasis is a disease caused by protozoan parasites of the Leishmania genus.
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   A wormis an elongated soft- bodied invertebrate animal, most commonly the earthworm.
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  Elephantiasis • Elephantiasis isa symptom of a variety of diseases, where parts of a person's body swell to massive proportions.
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   Helminths also commonlyknown as parasitic worms, are large multicellular organisms, which when mature can generally be seen with the naked eye. They are often referred to as intestinal worms even though not all helminths reside in the intestines; for example Schistosomes are not intestinal worms, but rather resides in blood vessels.