Infectious Diseases

How to Diagnose Listeria Infections

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Listeriosis is caused by the bacterium Listeria monocytogenes. It normally lives in soil and water and is contracted by eating food contaminated with the bacteria. Listeriosis primarily affects people with compromised immune systems, pregnant ... more »

How to Diagnose Malaria

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Malaria is an infection of a sporozoan in the Plasmodium genus. It is transmitted through the bite of a female mosquito of the Anopheles genus. It may be responsible for 10 percent of deaths in children in developing countries where malaria is ... more »

How to Diagnose Melioidosis

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Melioidosis, also known as Whitmore's disease, is caused by the Burkholderia pseudomallei bacterium. It is primarily a tropical disease and is endemic in southeast Asia. Burkholderia pseudomallei lives in the water and soil, and is transmitted to ... more »

How to Diagnose Neurocysticercosis

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Neurocysticercosis is an infection by the larva of Taenia solium, a pork tapeworm. It is the most common parasitic infection affecting the central nervous system. Neurocysticercosis has been endemic in Africa, Asia and Latin America, but is ... more »

How to Diagnose Onchocerciasis

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Onchocerciasis is an infection by the Onchocerca volvulus nematode. It is transmitted by black flies of the Simulium genus and affects 18 to 40 million people worldwide, most of them in Nigeria. Approximately 2 million people are blind because of ... more »

How to Diagnose Pneumonic Plague

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The term plague may be used generically to refer to an epidemic of any disease. In a medical context, however, it refers specifically to infections by Yersinia pestis, a rod-shaped bacterium. This disease is known for its ability to kill vast ... more »

How to Diagnose Pseudomonas Infections

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Pseudomonas infections are caused by any bacteria in the Psuedomonas genus, especially Psuedonomas aeruginosa. These bacteria are widespread in soil and water throughout the world. They favor moisture and can live in chlorinated pools. ... more »

How to Diagnose Psittacosis

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Psittacosis is an infection caused by the Chlamydia psittaci bacterium. It is usually transmitted to humans from birds, particularly parrots, although infection from mammals such as cattle, goats and sheep also is known. Psittacosis is not known ... more »

How to Diagnose Q Fever

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Q fever is an infection caused by the Coxiella burnetii rickettsia. Coxiella burnetii is transmitted to humans by inhaling droplets of contaminated birth products, feces and urine from infected animals and, in rare cases, unpasteurized milk. Q ... more »

How to Diagnose Rheumatic Fever

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Rheumatic Fever is a delayed response to group A beta hemolytic streptococcal pharyngitis, commonly known as "strep throat." It is a clinical diagnosis and not a specific disease. Rheumatic fever is most common in children between 5 and 15 years ... more »

How to Diagnose Rocky Mountain Spotted Fever

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Rocky Mountain spotted fever is an infection caused by Rickettsia rickettsii. It is the most common rickettsial illness in the United States, but also is found in Mexico, and Central and South America. It is transmitted to humans by a bite from ... more »

How to Diagnose Scarlet Fever

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Scarlet fever is a syndrome caused by toxins produced by the group A beta-hemolytic Streptococcus bacteria. It is contagious and transmitted by the respiratory fluids of an infected person. Scarlet fever caused deadly epidemics in the 19th ... more »

How to Diagnose Schistosomiasis

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Schistosomiasis is a parasitic infection by a trematode in the Schistosoma genus. It is a major cause of death in developing countries and is spread elsewhere by immigration and tourism. Schistosomes infect freshwater snails that release the ... more »

How to Diagnose Sepsis

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Sepsis is a severe infection of the bloodstream by a toxin-producing bacteria. The infection can originate from anywhere in the body, but common sites include the intestines, kidneys, liver, lungs and skin. Hospital patients may become infected ... more »

How to Diagnose Septic Shock

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Septic shock is a severe blood infection associated with reduced blood flow to the organs and low blood pressure that does not respond well to fluid resuscitation. Most cases occur in hospitals among patients with underlying diseases or ... more »

How to Diagnose Streptococcal Infections

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Streptococcal infections are caused by any bacterium of the Streptococcus genus. This genus is common and many people carry them without harm. There are several groups of streptococcus, but groups A and B are of the greatest concern for human ... more »

How to Diagnose Taeniasis

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Taeniasis is a parasitic infection of any cestode of the Taenia genus, although only Taenia solium and Taenia saginata cause infection in humans. Both of these infections are endemic in Africa, Europe, Central and South America, and Southeast ... more »

How to Diagnose Toxocariasis

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Toxocariasis is a parasitic infection by roundworms of the genus Toxocara, specifically the dog roundworm (Toxocara canis) and cat roundworm (Toxocara cati). Cats and dogs are the primary host and humans are accidental hosts. Humans ingest the ... more »

How to Diagnose Toxoplasmosis

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Toxoplasmosis is a parasitic infection from a protozoan in the Toxoplasma genus, specifically Toxoplasma gondii. The congenital form of this infection is the most serious and causes a variety of birth defects, including neurological and ... more »

How to Diagnose Trypanosomiasis

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Trypanosomiasis is a parasitic infection of a protozoan in the Trypanosoma genus. In common usage, however, this term refers specifically to infections caused by Trypanosoma brucei and is synonymous with Human African Trypanosomiasis (HAT). ... more »

How to Diagnose Whooping Cough

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Whooping cough, otherwise known as pertussis, is an infection of the respiratory system that's caused by the bacteria Bordetella pertussis. Pertussis mainly affects infants under 1-year old, unimmunized children and elderly patients. However, ... more »

How to eat safe from Salmonella bacteria

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Salmonella bacteria seems infecting raw foods like red tomatoes ,so you might look for any bruises or spoiled foods before putting it in your mouth. Stay healthy to fight any harmful bacteria in your system... more »

How to Fight a Cold With Crystals

By Patricia Resnick

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Starve a cold, feed a fever? The other way around? Let's face it, nobody knows what helps. Everyone has their standbys, from mustard plasters to hot toddies. The world of natural medicine offers several minerals that can help you through a cold... more »

How to Find an Infectious Disease Doctor

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Infectious disease doctors are internal medicine doctors who treat and diagnose infectious diseases of varying types in the human body. Some diseases that infectious disease doctors deal with include AIDS, tuberculosis, malaria, meningitis, ... more »

How to Get a Chickenpox Vaccine

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A chickenpox vaccine, or varicella vaccine, is 90 percent effective. Chickenpox is a common disease among children and can lead to serious complications including scarring, brain swelling, pneumonia and skin infections. Adults also can contract ... more »

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