Epidemiology of ascariasis ppt

  1. Ascariasis Dr. Pendru Raghunath. 2. INTRODUCTION • Ascaris lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. • Ascaris lumbricoides is an intestinal worm found in the small intestine of man (mainly in the jejunum and upper part of the ileum). • They are more common in children than in adults • As many as.
  2. Epidemiology & Risk Factors. Ascariasis caused by Ascaris lumbricoides is one of the most common intestinal worm infections. It is found where access to personal hygiene and proper sanitation practices are not available, and in places where human feces is used as fertilizer. Ascariasis caused by Ascaris suum is found where there are pigs
  3. INTRODUCTION • Ascaris lumbricoides is the largest nematode (roundworm) parasitizing the human intestine. • Ascaris lumbricoides is an intestinal worm found in the small intestine of man. • They are more common in children then in adult. • As many as 500 to 5000 adult worms may inhabit a single host. 3
  4. Emergence of adult worms A large mass of Ascaris lumbricoides that was passed from the intestinal tract 26. Intestinal blockage in heavy infections - intestinal obstruction Worms may knot up causing blockage which may be fatal 27
  5. thes described in medical histories. About 1 billion people of the world are infected by it. Ascaris lumbricoides has three stages in its life cycle, ova, larva and adult of which embryonated ova are the infective stage and larva and adults are the pathogenic stage
  6. thic infections. 2. Hel

CDC - Ascariasis - Epidemiology & Risk Factor

  1. al discomfort. Heavy infections can cause intestinal blockage and impair growth in children. Other symptoms such as cough are due to migration of the worms through the body. Ascariasis is.
  2. thic human infections worldwide. Highest prevalence in tropical and subtropical regions, and areas with inadequate sanitation. Ascariasis occurs in rural areas of the southeastern United States. In United States, ascariasis is the third most frequent hel
  3. thic infection, with an estimated worldwide prevalence of 804 million cases in 2013. [1, 2, 3] Usually asymptomatic, ascariasis is most prevalent in children of tropical and developing countries, [] where they are perpetuated by conta
  4. Epidemiology & Risk Factors. Fresh-water crabs like this one were implicated in a Paragonimus outbreak in January of 2007. Credit DPDx. Several species of Paragonimus cause most infections; the most important is P. westermani, which occurs primarily in Asia including China, the Philippines, Japan, Vietnam, South Korea, Taiwan, and Thailand
  5. thic infection globally. The burden is highest in tropical and subtropical regions, especially in areas with inadequate sanitation. This infection is generally rare to absent in developed countries, but sporadic cases may occur in rural, impoverished regions of those countries
  6. Ascaris lumbricoides: Morphology, life cycle, Pathogenesis, lab diagnosis and Treatment Ascaris lumbricoides is an intestinal round worm. It is the largest intestinal nematode to infect Human. The adult worm lives in small intestine and grow to a length of more than 30 cm. Human is only the natural host and reservoir of infection
  7. Ascaris Lumbricoides - Title: PowerPoint Presentation Last modified by: system Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles. Title: PowerPoint Presentation Last modified by: system Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles.

Ascaris lumbricoides - SlideShar

Ascaris lumbricoides is the largest and most common of the intestinal helminths, and measure 1.5-3 cm in length. The adult female of Enterobius vermicularis (pinworm) is 10 mm long and may occasionally be visible. The adult whipworm (Trichuris trichuria) is 30-50 mm long, and is seen only on a prolapsed rectum Individual predisposition, household clustering and risk factors for human infection with Ascaris lumbricoides: new epidemiological insights. PLoS Negl Trop Dis. 2011 Apr 26. 5(4):e1047. . . Hoenigl M, Seeber K, Valentin T, Zollner-Schwetz I, Krause R. Pulmonary ascariasis in patients from wealthy countries: shift in epidemiology? Epidemiology & Risk Factors. Related Pages . Unstained adult Fasciola hepatica fluke fixed in formalin (30 mm by 13 mm) (CDC Photo: DPDx) Fascioliasis occurs in many areas of the world and usually is caused by F. hepatica, which is a common liver fluke of sheep and cattle. In general, fascioliasis is more common and widespread in animals than. The deworming exercise program does not cover all children who are not in school. This study determined the prevalence and species type of helminth infestation and associated factors among children attending Princess Marie Louise Children's Hospital in Accra, Ghana. Children (225) below the age of 10 who have not taken antihelminthic drugs prior to the study period were recruited between May. Background With one quarter of the world population infected, the intestinal nematode Ascaris lumbricoides is one of the most common infectious agents, especially in the tropics and sub-tropics. Infection is caused by oral intake of eggs and can cause respiratory and gastrointestinal problems. To identify high risk areas for intervention, it is necessary to understand the effects of climatic.

Ascaris.ppt - SlideShar

Background. Enterobius vermicularis is a small nematode This common helminthic infestation has an estimated prevalence of 40 million infected individuals in the United States. [ 1] The female nematode averages 10 mm X 0.7 mm, whereas males are smaller. All socioeconomic levels are affected. Infestation often occurs in family clusters Tinea cruris is a contagious infection transmitted by fomites, such as contaminated towels or hotel bedroom sheets, or by autoinoculation from a reservoir on the hands or feet (tinea manuum, tinea pedis, tinea unguium). The etiologic agents in tinea cruris produce keratinases, which allow invasion of the cornified cell layer of the epidermis Epidemiology is the study of health in populations to understand the causes and patterns of health and illness. The Epidemiology Program, a research division of VA's Office of Patient Care Services, conducts research studies and surveillance (the collection and analysis of data) on the health of Veterans. The focus is primarily on Veterans who served in combat deployments and those who use VA. Ascaris lumbricoides , common saying. round worm of man, is the largest of the. intestinal nematodes parasitizing humans. It is. the most common worm found in human. It is. worldwide in distribution and most prevalent. through out the tropics, sub-tropics and more. prevalent in the countryside than in the city Arial Tahoma Times New Roman Wingdings Arial Black 宋体 Britannic Bold Shimmer Ascaris Lumbricoides Taxonomy Slide 3 Morphological forms MORPHOLOGY Slide 6 Slide 7 Adult female Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 Pathogenesis Life cycle Slide 16 Manifestations due to of migrating larva : Manifestations due to adult : Slide 19 Slide 20.

Epidemiology ,prevention and control of helminthic infection

Despite advances in the understanding of anemia etiology, epidemiology, and pathophysiology, important research gaps remain. For example, studies to optimize the assessment of anemia using Hb (e.g., accuracy, cost-effectiveness, and defining thresholds that have physiologic and health significance) would improve the ability to assess anemia burden WHO Library Cataloguing-in-Publication Data The global epidemiology of infectious diseases [electronic resource] / edited by Christopher J. L. Murray, Alan D. Lopez, Colin D. Mathers Ascaris lumbricoides , common saying round worm of man, is the largest of the intestinal nematodes parasitizing humans. It is the most common worm found in human. It is worldwide in distribution and most prevalent through out the tropics, sub-tropics and more prevalent in the countryside than in the cit The main species that infect people are the roundworm (Ascaris lumbricoides), the whipworm (Trichuris trichiura) and the hookworms (Necator americanus and Ancylostoma duodenale. Soil-transmitted helminth infections are widely distributed in all WHO Regions

CDC - Ascariasis - Diseas

The epidemiology of Ascaris lumbricoides, Trichuris trichura and hookworm in children in the Ranomafana rainforest Madagascar. J Parasitol 1995;81(2):159-69. 4. Bahader SM, Ali GS, Shaalan AH, Khalil NM. Effects of Entrobius vermicularis infection in intelligence quotient (IQ) and antropometric measurement of Egyptian rural children Background Ascariasis, Trichuriasis and Hookworm infections poses a considerable public health burden in Sub-Saharan Africa, and a sound understanding of their spatial distribution facilitates to better target control interventions. This study, therefore, assessed the prevalence of the trio, and mapped their spatial distribution in the 20 administrative regions of Ogun State, Nigeria Ascariasis is an infection of the small intestine caused by Ascaris lumbricoides, which is a species of roundworm.. Roundworms are a type of parasitic worm. Infections caused by roundworms are.

Ascaris lumbricoides, a fleshy, cylindrical roundworm, is the largest nematode to colonise the human gut. Adult male and female worms live for about a year, during which time a single female can produce up to 240,000 eggs per day. Diemert DJ. Ascariasis Biliary ascariasis is common in certain geographical areas of the world. In India, it is common in the Kashmir valley and only stray cases have been reported from other parts of the country. Between January 1995 and May 1997, 14 patients with biliary ascariasis were seen at our centre, which is more than 1000 km from the Kashmir valley. The mean (± SD) age of the patients was 31.7 (± 6.1. Ascariasis is a globally spread intestinal nematode infection of humans and a considerable concern in pig husbandry. Ascaris accomplishes a complex body migration from the intestine via the liver and lung before returning to the intestine. Tissue migration and the habitat shared with a complex microbial community pose the question of how the nematode interacts with microbes and host cells from. 1.0 Epidemiology of the Disease and Pathogen(s) 1.1 Global Burden of Disease. Trichuris trichiura has a worldwide distribution (Figure 1). Along with Ascaris lumbricoides and hookworms, Trichuris trichiura is one of the three most prevalent STHs in the world (Cooper et al., 2011)

• Methods of epidemiology of Descriptive Analytical: Epidemic investigations Experimental MLHP SYLLABUS (can be incorporated in this unit) • Time trends in disease occurrence in epidemiology. • Investigations of an outbreak. • Integrated disease surveillance project. 10 12 2 2 2 2 2 2 Lesson plan • PPT Ascaris lumbricoides is the giant roundworm of humans, growing to a length of up to 35 cm (13.779527545 in). It is one of several species of Ascaris. An ascarid nematode of the phylum Nematoda, it is the largest and most common parasitic worm in humans Epidemiology: Hookworm infections are the second most common helminthic infection next to ascariasis. The infection in worldwide is distribution more commonly in areas with warm and moist climate. Approx. 1200 million people are infected worldwide Epidemiology. Ascaris lumbricoides is widely distributed in tropical and subtropical regions and in other humid areas. Approximately one-quarter of the world's population is infected at any given time. It is much less common in developed countries and relatively rare in the United States

INTRODUCTION — Ascaris lumbricoides, an intestinal

Most infections with Ascaris lumbricoides are asymptomatic, although moderate to heavy infections may lead to nonspecific gastrointestinal tract symptoms, malnutrition, and growth delay. During the larval migratory phase, an acute transient pneumonitis (Löffler syndrome) associated with cough, substernal discomfort, shortness of breath, fever, and marked eosinophilia may occur The observation by microscopy of nematode eggs in human faeces is used to diagnose a helminthic infection, while the concentration of those eggs is used to estimate the number of worms in the host. Within a community, the prevalence of infection and the mean egg count provide useful information about the extent of a public health problem, and are being used to guide the growing efforts to. Forensic parasitology is a promising new tool to prevent illegal trade in protected species, and other research areas like epidemiology and human public health protection. Two multiplex PCR maps for 14 microsatellites loci were designed based on information content reported in Ascaris spp. literature. PCR reactions were standardized, minimizing artefacts, to obtain genetic profiles that.

Ascariasis: Background, Pathophysiology, Epidemiolog

Ascaris lumbricoides, also known as the giant intestinal roundworm, is one of several soil-transmitted nematodes that are infectious to humans. According to the Global Network for Neglected Tropical Diseases, ascariasis is the most common human worm infection 2. More than 60,000 people die from the disease annually By the year 2000 it is estimated that this number will grow to 2200 million, and by 2025 about 57% of the population in developing countries will be in urban areas. The prevalence of infections caused by Entamoeba histolytica and Giardia intestinalis and the prevalence and intensity of Ascaris lumbricoides and Trichuris trichiura infections may. Ascaris lumbricoides (large intestinal roundworm) Largest nematode adult males ( 200-300 mm) • If no male present in small intestine, female will lay bizarre shaped unfertilized eggs • No intermediate host A large mass of Ascaris lumbricoides that was passed from the intestinal tract. Typical fertilized ova Ascaris lumbricoides. lips and fac

Ascariasis is the most common human helminth infection. The transmission of infection is usually from hand to mouth, and humans are the only known host. Pathophysiology. Ascariasis is a soil-transmitted helminth infection with the round worm called Ascaris lumbricoides, and humans are the only known host Field Epidemiology and Disease Surveillance division of Ministry of Health (MoH) urge to step up dengue surveillance, case management and outbreak response in primary health facilities and. Author Summary Soil-transmitted helminth (STH) infections with A. lumbricoides, T. trichiura and hookworms are endemic in all 80 provinces of the Philippines, but the spatial variation in the prevalence of these infections has not been previously described. This analysis revealed that while A. lumbricoides and T. trichiura infections were widespread and highly endemic, hookworm infections were.

CDC - Paragonimiasis - Epidemiology & Risk Factor

Cysticercosis is a tissue infection caused by the young form of the pork tapeworm. People may have few or no symptoms for years. In some cases, particularly in Asia, solid lumps of between one and two centimetres may develop under the skin. After months or years these lumps can become painful and swollen and then resolve Ascaris lumbricoides. It is an intestinal parasite, large in size (largest human parasitic nematode). It is the most common worm found in human. The disease which causes is called Ascariasis or roundworm infection. Habitat is small intestin Eggs are passed in the stool , and under favorable conditions (moisture, warmth, shade), larvae hatch in 1 to 2 days. The released rhabditiform larvae grow in the feces and/or the soil , and after 5 to 10 days (and two molts) they become filariform (third-stage) larvae that are infective

CDC - DPDx - Ascariasi

The major soil-transmitted helminthes include Ascaris Lumbricoides, Trichuris trichuria and Ancylostoma duodenal. The infections are associated with inadequate sanitation and water supplies. Ascariasis (round worm infection) is generally associated with few or no symptoms. Live worms, passed in stools or occasionally from mouth or nose, are. Slide A4 Hydraulic engineering is an important component of environmental management in which relevant activities include drainage, stream canalization, lining of streams and canals, land levelling and filling to eliminate depression areas, seepage control, piped or covered canals and drains, weed control, improved water management, diking and dewatering, and strict discipline in th Ascariasis Dracunculiasis Sathe , Epidemiology & management of Heath Care , Popular publication 8. Mahajan Gupta, Textbook of Preventive & Social Medicine, Jaypee Publications 9. Lancaster, Community Health Nursing Process and Practice for Promoting Health , Mosby 10. Publications

Ascariasis worm. Ascariasis worms are typically pink or white with tapered ends. Female worms can be more than 15 inches (40 centimeters) long and a little less than a quarter inch (6 millimeters) in diameter. Male worms are generally smaller. Ascariasis (as-kuh-RIE-uh-sis) is a type of roundworm infection. These worms are parasites that use. J.A. Salomon, in Encyclopedia of Health Economics, 2014 Introduction. The disability-adjusted life year (DALY) is a summary measure of population health that accounts for both mortality and nonfatal health consequences. DALYs were first developed for the primary purpose of quantifying the global burden of disease (GBD). In this context, the DALY was designed as the unit of analysis for. Ascaris lumbricoides, an intestinal roundworm, is a soil-transmitted helminth and one of the most common parasites in the world.It causes a variety of clinical manifestations known as ascariasis. Although A lumbricoides infects nearly 1 billion people worldwide and causes significant morbidity, it remains a neglected tropical disease Learning outcomes At the end of this session, all students should be able to • Define the terms used in understanding the epidemiology of communicable diseases. • Discuss the concept of epidemiologic triad in understanding communicable diseases. • Explain the chain of infection with the help of an example. 27/09/2016 Water-washed diseases: diseases due to the lack of proper sanitation and hygiene (Ascariasis =roundworm infection, Ancylostomiasis (=hookworm infection) Water-based diseases: infections transmitted through an aquatic invertebrate organism (Schistosomiasis, (Bilharzia), Water-related vector-borne diseases diseases transmitted by insects that.

Christine Dubray, Sharon Roy. INFECTIOUS AGENTS. Ascaris lumbricoides (roundworm), Ancylostoma duodenale (hookworm), Necator americanus (hookworm), and Trichuris trichiura (whipworm) are helminths (parasitic worms) that infect the intestine and are transmitted via contaminated soil.. TRANSMISSION. Eggs are passed in feces from an infected person. Hookworm eggs are not infective—the eggs must. PARASITIC INFECTION PREVENTION AND CONTROL BY THE CLCID OF THE KCDC. Until the 1970s, most Koreans had high levels of intestinal parasitic infections, mostly from soil-transmitted helminths such as Ascaris lumbricoides, Trichuris trichiura, hookworms (Ancylostoma duodenale and Necator americanus), and Trichostrongylus orientalis [15,16].In particular, A. lumbricoides (a representative. Entamoeba histolytica- Morphology, Epidemiology, Life cycle, Pathogenesis, Clinical findings. 500 Million populations are infected over the world. 60-70% population in Pakistan is infected; Entamoeba histolytica caused amebic dysentery and liver abscess Epidemiology. The incidence of gallstones causing biliary obstruction is approximately 5 in 1000 people, whereas 10% to 15% of the adult U.S. population will develop gallstones in their lifetime. Gall stones or Cholelithiasis, including gall bladder sludge formation, is the precursor of choledocholithiasis, where gall stones pass through the cystic duct and get lodged into the common hepatic.

More than a quarter of the world's population is at risk of infection with the soil-transmitted helminths Ascaris lumbricoides, hookworm (Ancylostoma duodenale and Necator americanus), Trichuris trichiura, and Strongyloides stercoralis. Infected children and adults present with a range of medical and surgical conditions, and clinicians should consider the possibility of infection in. Leishmaniasis is a parasitic disease found in parts of the tropics, subtropics, and southern Europe. Leishmaniasis has several different forms. This section focuses on cutaneous leishmaniasis (CL), the most common form, both in general and in travelers A Brief History of Modern Epidemiology John Snow (1813-1858) Public Health intervention Late 1800s -> 1950s The hey day of infectious disease epidemiology and prevention John Ryle (1899-1950) The Institute of Social Medicine Doll & Hill (1954) Smoking and Lung Cancer Archie Cochrane (1909-1988) Evidence-based medicine Mary-Claire King (1946- ) BRCA1 gen

The nematode have a network of excretory tubes, which transfer the much of the solid waste to an anus of the worms. The nematode is one of the simplest creature to have two openings for excretion, rather than one in similarly developed organisms. The excretion of nitrogenous waste though within the Nematoda phylum is not nearly as structured Ascariasis Ascariasis A. lumbricoides 1 billion humans - infected worldwide, 60,000 deaths p.a. Mainly tropical Africa. Life cycle & Mode of infection Pathogenesis: - Intestinal worms - Pancreato-biliary worms - Other sites - kidneys, urethra, middle ear, pleural cavity, ventricles Faecal specimens were also screened for the presence of other intestinal parasitic infections, with participants being found to be infected with Trichuris trichiura (54.0%), Ascaris lumbricoides.

Ascaris lumbricoides: Morphology, life cycle, Pathogenesis

Helminthiasis. Helminthic infections are renowned for modulating the host's response into producing a T-helper type 2 (Th2) milieu that coincides with high levels of immunoglobulin E (IgE), T regulatory (Treg) cells and other immune cells such as mast cells, basophils, and, of course, eosinophils. From: Eosinophils in Health and Disease, 2013 Schistosomiasis, also known as snail fever and bilharzia, is a disease caused by parasitic flatworms called schistosomes. The urinary tract or the intestines may be infected. Symptoms include abdominal pain, diarrhea, bloody stool, or blood in the urine. Those who have been infected for a long time may experience liver damage, kidney failure, infertility, or bladder cancer Worm infections continue to be among the most common diseases affecting children from low and middle income countries. Major worm infections of public health importance include Ascariasis, Trichuriasis, Hookworm, and Enterobiasis, which are transmitted through contaminated soil. In India, combined prevalence rates of worm infestation as per pooled data of 127 surveys is over 20%

Criteria for Evaluating Success of Screening Test 1) Sensitivity is the percentage of patients with the disease that receive a positive result or the percentage chance that the test will correctly identify a person who actually has the disease. The sensitivity of a test is also called the true positive rate. A highly sensitive test can be useful for ruling out a disease if a person has a. Helminthiasis, also known as worm infection, is any macroparasitic disease of humans and other animals in which a part of the body is infected with parasitic worms, known as helminths.There are numerous species of these parasites, which are broadly classified into tapeworms, flukes, and roundworms.They often live in the gastrointestinal tract of their hosts, but they may also burrow into other.

1,054 Ascaris PPTs View free & download PowerShow

Malaria. This nursing study guide provides an overview of malaria including the five species of the malaria parasite, treatment, preventive options, nursing interventions, and nursing care planning, nursing diagnosis, and management. Malaria is one of the most common infectious diseases known to mankind and is among the leading causes of. Write the epidemiology of typhoid fever and what is the role of community health nurse in prevention of typhoid? Define community health nursing. Explain in detail the steps of community health nursing process with relevant example; Discuss in detail role and functions of nurse in promoting the heath of under-five children in the communit

Soil-transmitted helminth infections are caused by different species of parasitic worms. They are transmitted by eggs present in human faeces, which contaminate the soil in areas where sanitation is poor. Infected children are nutritionally and physically impaired. Approximately 1.5 billion people are infected with soil-transmitted helminths. Amoebiasis, ascariasis, hookworm infection, and trichuriasis are among the ten most common infections in the world. Although mortality from these infections is relatively low, complications are not uncommon and many cases need hospital care Rachel M. Chalmers, in Microbiology of Waterborne Diseases (Second Edition), 2014 Abstract. This chapter discusses Entamoeba histolytica, basic microbiology, natural history and life cycle, clinical features, pathogenicity, virulence and causation, treatment, methods of detection, survival and detection in the environment and in water, a critical review of the epidemiology and, finally, risk.

Ascaris lumbricoides - Loyola University Chicag

Arthropod-borne diseases are a major problem whenever outdoor activities bring arthropods and people into contact. The arthropods discussed here include arachnids (ticks) and insects. Most arthropod bites and stings are minor, with the notable exception being bee-sting anaphylaxis. Ticks cause the m epidemiology Intussusception typically presents between 6 and 36 months of age, and is the most common cause of intestinal obstruction in this age group. Approximately 60 percent of children with intussusception are younger than one year old, and 80 to 90 percent are younger than two years [ 5 ] UpToDate, the evidence-based clinical decision support resource from Wolters Kluwer, is trusted at the point of care by clinicians worldwide The Summer Session is intended for health professionals in training or those who are considering a mid-career change into public health and feel the need to strengthen their skills. Applicants must have a prior bachelor's degree in order to be eligible to apply. Participants include current degree students, incoming degree candidates, and non-degree students


Ascariasis Clinical Presentation: History, Physical

Infectious Disease Prevention Section Mail Code: 1927 PO BOX 149347 - Austin, TX 78714-9347 1100 West 49th Street, Suite G401 Austin, TX 78714. Phone: (512) 776-767 Ascariasis, trichuriasis, and hookworm and pinworm infections—For adults and children older than 2 years with ascariasis and pinworm infections, the treatment for ascariasis is a single dose of 400 mg orally (repeated for 2-3 days for heavy infections and in 2 weeks for pinworm infections). These treatments typically achieve good cure rates. For microbiologic aspects of the causative organism(s), see Ascaris lumbricoides. Ascariasis Microchapters. Home. Patient Information. Overview. Historical Perspective. Pathophysiology. Causes. Differentiating Ascariasis from other Diseases. Epidemiology and Demographics. Risk Factors. Natural History, Complications and Prognosis. Diagnosis. Parasitic nematodes (worms) in humans can be found in the intestines, muscles and other tissues. More people around the world have a nematode infection than any other parasitic infection 2.People can get infected with various nematodes through several ways: ingestion of the eggs, skin penetration by the larva or through the bite of an infected vector The 13 parasitic and bacterial infections known as the neglected tropical diseases include three soil-transmitted helminth infections (ascariasis, hookworm infection, and trichuriasis), lymphatic.

Soil-Transmitted Helminthiasis and Vitamin A DeficiencyPPT - Ascaris lumbricoides PowerPoint Presentation, freePPT - Principles of Communicable Diseases Epidemiology