Helminths: Parasitic Metazoans, And Prevention Essay

1527 words - 6 pages

INTRODUCTION
Helminths (helmins: worms) are group of parasitic metazoans. Soil transmitted helminths infections or helminthiasis (STH) are caused by these group of parasitic worms namely; roundworm (Ascaris lumbricoides), whipworm (Trichuris trichiura) and hookworms (Ancylostoma duodenale and Necator americanus). They are also called intestinal worms because the adult worms live in the intestine. STH is now the most common parasitic infection of humans worldwide, surpassing even the most common talked about parasitic infection, malaria. “Approximately two billion people are infected and four billion of the world populations are at risk of being infected, as of latest estimate, with highest number of cases occurring in tropical and sub-tropical countries; Sub-Saharan Africa, Latin America, Southeast Asia and China” (source, www.wikipedia.org). STH are usually transmitted by ingestion of eggs which are present in the soil which was contaminated by human feces. Food items such as vegetables and fruits are also contaminated especially in areas where fecal matter is used as manure or fertilizer, the eggs also contaminate the water supply, this happens in areas where there is poor sanitation and poor communities where the people do not have resources to build a toilet or latrine. Transmission can also be through penetration of the skin by the larvae of hookworms or accidental ingestion of the larvae of Ancylostoma duodenale. STH are common among children who play with contaminated sand and put the hand in their mouth or use the same hands to eat without washing them or pick up contaminated food items from the ground. STH is said to be one of the most important cause of intellectual and physical retardation in children, they cause abdominal pain, diarrhea, malnutrition and can be life threatening; the more the number of worms the more severe the disease condition. Effective control measures include; good personal hygiene and sanitation, health education, periodic administration of anthelminth drugs especially for pre-school and school age children as they are the population at highest risk of being infected.

GLOBAL HEALTH PROBLEMS POSED BY HELMINTHS INFECTIONS
According to the World Health Organization, estimates taken worldwide show that approximately;
• 807-1121 million people are affected by Ascaris lumbricoides
• 576-740 million are affected by hookworms
• 604-794 million are affected by whip worm
• 880 million children need treatments from any one of these infections and that 135,000 die per year from these infections (cause of death is usually due to the high amount of worms in the individual because the more the worms, the more the severity of the infection).
Ascaris is the most widespread STH; children are more commonly affected by Ascaris lumbricoides. Mild infections show little or no symptom, heavy infections can result in physical weakness, severe intestinal block and retard growth in children. Severe ascariasis can also cause pneumonia and...

Find Another Essay On Helminths: Parasitic Metazoans, and Prevention

Soil-transmitted Helminthes: Parasitic Worms Essay

1954 words - 8 pages World Health Organizationstated ‘Soil-transmitted helminthesinfections are among the most common infections worldwide and affect the poorest and most deprived communities. They are transmitted by eggs present in human feces which in turn contaminate soil in areas where sanitation is poor’ Helminthes are parasitic worms. Soil helminthes are the parasitic worms transmitted via the soil. The main species that infect people are the roundworm

Soil Transmitted Helminthes Essay

1066 words - 5 pages SOIL TRANSMITTED HELMINTHS Soil transmitted helminthes could be defined as a group of parasitic disorders in human beings that can be caused by intestinal roundworms such as hookworm (ancylostoma duodenale), and whipworm (trichuris trichuria), collectively called soil transmitted helminthes (STHs) which could be transmitted through a contaminated soil. It has become one of the most common

Helminthes and Parasites

1393 words - 6 pages soil transmitted helminthic diseases are prevalent in North and South Americas, China and Eastern Asia and Africa. The World Health Organization (WHO) estimates that nearly two billion people are infected with soil-transmitted helminths (STH) infections worldwide. These are widely distributed in tropical and semitropical regions, with the highest figures happening in areas relating to the south of Sahara desert, the Americas, China and East

Infections by Helminth Parasitic Worms

1508 words - 7 pages PARASITOLOGY ASSIGNMENT: DISCUSS THE PUBLIC HEALTH CHALLENGES POSED BY SOIL-TRANSMITTED HELMINTHS INFECTIONS IN THE DEVELOPING WORLD AND MORE SO IN AFRICA AND STATE HOW THE INFECTIONS COULD BE EFFECTIVELY CONTROLLED. INTRODUCTION Globally, up to two billion people are estimated to be infected with one or more of the soil-transmitted helminthes (STH) that include roundworms (Ascaris lumbricoides), whipworms (Trichuris trichuria) and hookworms

Different Methods as to which Parasites Enter the Body

1349 words - 6 pages acquiring hosts may be grotesque, but it has allowed them to survive and evolve efficiently. Medical science has staggered parasitic infection in most countries, but parasites still find ways to harm and potentially kill humans. Works Cited "Onchocerciasis." Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 21 May 2013. Web. 30 Apr. 2014. "Parasites

Factors of Parasitic Virulence

1709 words - 7 pages Factors of Parasitic VirulenceABSTRACTWhy do some parasites kill the host they depend upon whileothers coexist with their host? Two prime factors determine parasiticvirulence: the manner in which the parasite is transmitted, and theevolutionary history of the parasite and its host. Parasites whichhave colonized a new host species tend to be more virulent thanparasites which have coevolved with their hosts. Parasites which aretransmitted

Inflammatory Bowel Disease and Industrialization

2193 words - 9 pages on genetic predispositions of IBD is underexposure to intestinal helminthes. Until the early 20th century, colonization of humans with these parasitic organisms was universal. Since then, clean water and food, paved streets and sidewalks, and modern sanitation systems in developed nations have reduced exposures to helminthes and perhaps other microbial organisms. This could be leading to immune dysregulation and increased susceptibility to

The Pros and Cons of the Great Migration

1967 words - 8 pages , New York, its population mainly increased after the 1920’s. From 1920 to 1930, it is said to be because of poor crops in the South. There were plenty of bad droughts and floods, and plus, the boll weevil cotton infestation occurred. This agriculturalinfestation /in·fes·ta·tion/ (-fes-ta´shun) parasitic attack or subsistence on the skin and/or its appendages, as by insects, mites, or ticks; sometimes used to denote parasitic invasion of the

flavanoids

545 words - 2 pages CHAPTER ONE1.1 INTRODUCTIONThe consumption of food products containing high amounts of flavonoids has been reported to lower the risk of various cancers.With the rapid advances in biomedical research, there has been a growing interest in screening natural products for their potential use in disease prevention and treatment. Polyphenols are important compounds of the human diet found in fruits, vegetables, grains, nuts, tea and wine (Di Carlo et

Disease Report on Scabies

965 words - 4 pages ; it affects people of all races and social classes. Institutions such as prisons, nursing homes and childcare centers are often sites of scabies outbreaks due to the crowded conditions and close contact with people. Prevention and control is done by avoiding direct skin-to-skin contact with an infected person and their personal items such as clothing and bedding. If one person in the household is diagnosed with scabies, then the whole family

Malaria

1024 words - 4 pages .” Encyclopedia of Plague and Pestilence: From Ancient Times to the Present, Rev. Ed. New York: Facts on File, Inc., 2001. This article was an updated history of African malaria outbreaks and the specific causes of and reactions to these epidemics. “Malaria.” CDC Division of Parasitic Diseases Information. 3 Mar. 2002. Center for Disease Control and Prevention. 5 Oct. 2002 <http://www.cdc.gov/ncidod/dpd/ parasites/malaria/default.htm

Similar Essays

Problelms Poised By Helminths And Parasites

1495 words - 6 pages INTRODUCTION Helminths from the Greek word “helmins” meaning “worms” are intestinal vermiform parasites, primarily consisting of nematodes , cestodes, and acanthocephalans. Soil transmitted helminths (STHs) refers to a group of parasitic diseases in humans caused by intestinal roundworms such as hookworms, whipworm, and ascaris, collectively called STHs, which are transmitted through contaminated soils. This is

Soil Transmitted Helminthes: Parasitic Worms Essay

1388 words - 6 pages developed country is likely to be parasitised with at least one, and in most cases all three soil-transmitted helminths, with resultant impairments in physical, intellectual, and cognitive development. The benzimidazole anthelmintics, mebendazole and albendazole, are commonly used to remove these infections. The use of these drugs is not limited to treatment of symptomatic soil-transmitted helminth infections, but also for large-scale prevention

Helminth Parasitic Worms Essay

1142 words - 5 pages INTRODUCTION THE WORD HELMINTH HAS ITS ORIGIN FROM GREEK MEANING WORMS. HELMINTHS ARE PARASITIC WORMS THAT HAVE BEEN WITH MANKIND SINCE TIME IN MEMORIAL. THE DISEASE BURDEN OF HELMINTH INFECTION ESPECIALLY TO DEVELOPING COUNTRIES FAR OUT WEIGHTS COMMONLY KNOWN INFECTION SUCH AS TUBERCULOSIS. EGGS OF INTESTINAL WORMS CAN BE SEEN IN FEACES OF MUMMIFIED BODIES WHO DIED THOUSANDS OF YEARS AGO

What Are Soil Transmitted Helminthes? Essay

1935 words - 8 pages ). The global disease burden is so huge the Ascarisis, a soil-borne helminth account for over one billion cases; the highest for any parasitic infection (Microbiology & Immunology online, 2014). Rather curiously, this high disease burden is reported less than less prevalent infections like malaria-causing plasmodium and HIV/ AIDS infections. This anomaly may be due to malaria`s higher mortality rate since helminth infections are less fatal than most