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Publication Years
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People with Guinea worm disease (GWD) have no symptoms for about 1 year. Then, the person begins to feel ill. Symptoms can include the following:
Slight fever
Itchy rash
Nausea
Vomiting
Diarrhea
Dizziness
A blister then develops. This blist
...
er can form anywhere on the skin. However, the blister forms on the lower body parts in 80%–90% of cases. This blister gets bigger over several days and causes a burning pain. The blister eventually ruptures, exposing the worm. The infected person may put the affected body part in cool water to ease the symptoms or may enter water to perform daily tasks, such as fetching drinking water. On contact with water, the worm discharges hundreds of thousands of larvae into the water.
more
The trematodes Fasciola hepatica (also known as the common liver fluke or the sheep liver fluke) and Fasciola gigantica are large liver flukes (F. hepatica: up to 30 mm by 15 mm; F. gigantica: up to 75 mm by 15 mm), which are primarily found in dome
...
stic and wild ruminants (their main definitive hosts) but also are causal agents of fascioliasis in humans.
more
Leptospirosis is an infectious disease caused by bacteria. It can lead to potentially fatal infections of the kidney, liver, brain, lung or heart.
• Leptospirosis is a disease that is caused by
spirochete bacteria in the genus Leptospira.
There are 10 pathogenic species, and more
than 250 pathogenic serovars.
• While leptospirosis occu
...
rs worldwide, it is
more common in tropical or sub-tropical
climates.
more
Onchocerciasis, or river blindness, is a neglected tropical disease (NTD) caused by the parasitic worm Onchocerca volvulus. It is transmitted through repeated bites by blackflies of the genus Simulium. The
...
disease is called river blindness because the blackfly that transmits the infection lives and breeds near fast-flowing streams and rivers, mostly near remote rural villages. The infection can result in visual impairment and sometimes blindness. Additionally, onchocerciasis can cause skin disease, including intense itching, rashes, or nodules under the skin. Worldwide onchocerciasis is second only to trachoma as an infectious cause of blindness.
more
Scabies is an infestation of the skin by the human itch mite (Sarcoptes scabiei var. hominis). The microscopic scabies mite burrows into the upper layer of the skin where it lives and lays its eggs. The most common symptoms of scabies are intense it
...
ching and a pimple-like skin rash. The scabies mite usually is spread by direct, prolonged, skin-to-skin contact with a person who has scabies.
more
Each year, rabies causes approximately 59,000 deaths worldwide. Despite evidence that control of dog rabies through animal vaccination programs and elimination of stray dogs can reduce the incidence
...
of human rabies, dog rabies remains common in many countries and exposure to rabid dogs is still the cause of over 90% of human exposures to rabies and of 99% of human rabies deaths worldwide. CDC experts in the Poxvirus and Rabies Branch conduct an annual assessment of individual countries’ rabies status worldwide which considers the presence of wildlife rabies, canine rabies variant (dog rabies), and non-rabies lyssaviruses.
more
A regimen of four 1-mL doses of HDCV or PCEC vaccines should be administered intramuscularly to previously unvaccinated persons.
The first dose of the four-dose course should be administered as soon as possible after exposure. Additional doses should be administered on days 3, 7,
...
and 14 after the first vaccination. For adults, the vaccination should always be administered intramuscularly in the deltoid area (arm). For children, the anterolateral aspect of the thigh is also acceptable. The gluteal area should never be used for rabies vaccine injections because observations suggest administration in this area results in lower neutralizing antibody titers.
more
Website last accessed in 12.03.23
CDC’s Lauren Greenberg writes about building rabies diagnostic capacity in the effort to control rabies in countries that are most affected by the disease.
The term leishmaniasis encompasses multiple clinical syndromes, including the cutaneous, mucosal, and visceral forms, which result from infection of macrophages in the dermis, in the naso-orpharyngeal mucosa,
...
and throughout the reticuloendothelial system, respectively. The infection can range from asymptomatic to severe in all of these forms. Cutaneous and mucosal leishmaniasis can cause severe morbidity; visceral and mucosal leishmaniasis can be life threatening.
more
Website last accessed on 18.03.2023
Websites last accessed on 24.03.2023
A parasite is an organism that lives on or in a host and gets its food from or at the expense of its host. Parasites can cause disease in humans.
Website last accessed on 24.03.2023
Education and information about Soil-Transmitted Helminths including Human Hookworm, Roundworm and Whipworm.
Website last accessed on 24.03.2023
A parasite is an organism that lives on or in a host and gets its food from or at the expense of its host. Parasites can cause disease in humans.
Website last accessed on 31.03.2023
Conozca la presentación clínica y la clasificación del dengue.
Websites last accessed on 31.03.2023
Dengue, Dengue virus, dengue hemorrhagic fever, dengue fever, flavivirus, Aedes mosquitoes, DHF, DF, DSS
Website last accessed on 31.03.2023
Learn about dengue clinical presentation and classification.
Websites last accessed on 31.03.2023
Learn how to protect your pregnancy from dengue.
Websites last accessed on 31.03.2023
Dengue testing guidance according to days of symptom onset.
Website last accessed on 31.03.2023
Learn about how dengue is transmitted
