This article's factual accuracy may be compromised due to out-of-date information.(January 2023) |
Lymphatic filariasis in India refers to the presence of the disease lymphatic filariasis in India and the social response to the disease. In India, 99% of infections come from a type of mosquito spreading a type of worm through a mosquito bite. [1] The treatment plan provides 400 million people in India with medication to eliminate the parasite. [2] About 50 million people in India were carrying the worm as of the early 2010s, which is 40% of all the cases in the world. [3] In collaboration with other countries around the world, India is participating in a global effort to eradicate lymphatic filariasis. If the worm is eliminated from India then the disease could be permanently eradicated. [4] [5] In October 2019 the Union health minister Harsh Vardhan said that India's current plan is on schedule to eradicate filariasis by 2021. [6]
To treat, prevent, and eliminate the disease, the Indian government provides mass drug administration (MDA) to achieve mass deworming. The treatment is a few pills taken once a year for five years. The medication provided is diethylcarbamazine.[ citation needed ] For the treatment to work 60-80% of people in large regions must take this yearly treatment for several years.
Treatment is done through a public health initiative in which most people in regions with the parasite take treatment. The treatment is a mass drug administration to cause mass deworming. In India the worm only lives in humans, so if everyone takes treatment, and everyone is cured, then the worm will be permanently eradicated. India participates in the global eradication program to eliminate the worm worldwide.[ citation needed ]
Health education for the public is an essential part of the campaign. [2] Hundreds of millions of people in affected communities have to agree to take the drugs once a year. [2] In a 2015 public health campaign called Hathipaon Mukt Bharat shows how the disease causes large feet, says the medicine is safe, and tells people to take it. [2]
The treatment program varies in different places in India. Various reports describe the variation, such as for Assam [7] and Andhra Pradesh. [8]
Most people who take treatment have no negative effects or only mild adverse events which resolve without further treatment. [9] A bigger problem than any side effects of treatment is people having fear of taking treatment, which leads them to refuse to take medicine. [9] Various studies have examined why people in various Indian regions neglect to take the drugs. [10]
99% of infections in India happen when the mosquito Culex quinquefasciatus spreads the worm Wuchereria bancrofti through a mosquito bite. [1] Because the cause of this disease can be a different worm and parasite in different countries, each country has its own plan for control and treatment. [11]
The typical prevention for filariasis is through the use of medication. [12] However, in some areas, using the pesticide spinosad to eliminate mosquitoes is helpful to prevent the spread. [12]
To eliminate the disease neither humans nor mosquitoes should have the parasite. [13] The usual way to determine whether filariasis is eliminated from an area is to test humans for the parasite. [13] In some special cases India uses molecular xenomonitoring to examine captured mosquitoes and determine if they carry the parasite. [13]
By 2006 there were 20 million people infected and with symptoms, 30 million people infected but asymptomatic, and 470 million people who were at potential risk. [1] In 2005 95% of the cases in India were in Andhra Pradesh, Bihar, Gujarat, Kerala, Maharashtra, Orissa, Tamil Nadu, Uttar Pradesh and West Bengal. [14]
India has 40% of the world's lymphatic filariasis (LF) cases. [15] For patients, one of the major costs of treating the disease is that of being unable to work for some time. [15] A year 2000 survey reported that about half the people in India were at risk of contracting LF. [16] Men and women are equally susceptible to this disease, but in the past, there have been barriers to women accessing treatment. [17] An estimate from the year 2000 reported that filariasis in India caused an annual economic loss of ₹5000 crore (US$1,000,000,000). [15]
The Sushruta Samhita , an Ayurvedic Indian text, described filariasis in the 6th century BCE. [1] The disease is timeless and present throughout Indian history. Indian physicians in the 500s wrote about the disease. [18] In the 1500s the European explorer Jan Huyghen van Linschoten visited Goa and wrote about people with filariasis symptoms there. [18]
In 1955 the Indian government established the National Filaria Control Programme (NFCP) as a project to limit the spread of the disease. [19] [1] By 1959 that organization proposed various plans for controlling or eliminating the disease. [20] Infections spread out of control from 1955 until 1995 in which time the number of cases increased several fold. [1] Reasons for the disease's expansion included increased urban population and a rapidly changing country which exposed people to new circumstances with mosquitoes. [21]
In 1997 India joined a World Health Assembly resolution to eliminate LF by 2020. [19] In India to achieve this goal healthcare must be very accessible to almost everyone at risk for the disease. [22] The Indian government originally planned to eliminate the disease by 2015, then shifted the date to 2017, then to 2020. [23] Various media outlets have discussed how India might meet the goal or what it should happen next if more time is required. [24] [25] [26]
In 2015 the Indian government launched a health campaign called Hathipaon Mukt Bharat (Filaria Free India) to encourage public participation in eliminating LF. [27] [28] In the program everyone in an area with the disease takes pill medicine once a year for five years. [23] The drug is diethylcarbamazine citrate and albendazole and is in the form of about four pills which people take all at once. [23]
Public health researchers have applied machine learning techniques to improve public health monitoring for filariasis in India. [29]
A 2019 report identified dogs in Kerala who have another worm which can cause filariasis, Brugia malayi . [30] This worm is not known to infect people in India. [30] If necessary tests are ready to identify the dogs carrying the disease. [30]
Malaria is a mosquito-borne infectious disease that affects humans and other vertebrates. Human malaria causes symptoms that typically include fever, fatigue, vomiting, and headaches. In severe cases, it can cause jaundice, seizures, coma, or death. Symptoms usually begin 10 to 15 days after being bitten by an infected Anopheles mosquito. If not properly treated, people may have recurrences of the disease months later. In those who have recently survived an infection, reinfection usually causes milder symptoms. This partial resistance disappears over months to years if the person has no continuing exposure to malaria.
Diethylcarbamazine is a medication used in the treatment of filariasis including lymphatic filariasis, tropical pulmonary eosinophilia, and loiasis. It may also be used for prevention of loiasis in those at high risk. While it has been used for onchocerciasis, ivermectin is preferred. It is taken by mouth.
Onchocerciasis, also known as river blindness, is a disease caused by infection with the parasitic worm Onchocerca volvulus. Symptoms include severe itching, bumps under the skin, and blindness. It is the second-most common cause of blindness due to infection, after trachoma.
Filariasis is a parasitic disease caused by an infection with roundworms of the Filarioidea type. These are spread by blood-feeding insects such as black flies and mosquitoes. They belong to the group of diseases called helminthiases.
Wuchereria bancrofti is a filarial (arthropod-borne) nematode (roundworm) that is the major cause of lymphatic filariasis. It is one of the three parasitic worms, together with Brugia malayi and B. timori, that infect the lymphatic system to cause lymphatic filariasis. These filarial worms are spread by a variety of mosquito vector species. W. bancrofti is the most prevalent of the three and affects over 120 million people, primarily in Central Africa and the Nile delta, South and Central America, the tropical regions of Asia including southern China, and the Pacific islands. If left untreated, the infection can develop into lymphatic filariasis. In rare conditions, it also causes tropical pulmonary eosinophilia. No vaccine is commercially available, but high rates of cure have been achieved with various antifilarial regimens, and lymphatic filariasis is the target of the World Health Organization Global Program to Eliminate Lymphatic Filariasis with the aim to eradicate the disease as a public-health problem by 2020. However, this goal was not met by 2020.
Brugia malayi is a filarial (arthropod-borne) nematode (roundworm), one of the three causative agents of lymphatic filariasis in humans. Lymphatic filariasis, also known as elephantiasis, is a condition characterized by swelling of the lower limbs. The two other filarial causes of lymphatic filariasis are Wuchereria bancrofti and Brugia timori, which both differ from B. malayi morphologically, symptomatically, and in geographical extent.
Acanthocheilonemiasis is a rare tropical infectious disease caused by a parasite known as Acanthocheilonema perstans. It can cause skin rashes, abdominal and chest pains, muscle and joint pains, neurological disorders and skin lumps. It is mainly found in Africa. The parasite is transmitted through the bite of small flies. Studies show that there are elevated levels of white blood cells.
Podoconiosis, also known as nonfilarial elephantiasis, is a disease of the lymphatic vessels of the lower extremities that is caused by chronic exposure to irritant soils. It is the second most common cause of tropical lymphedema after lymphatic filariasis, and it is characterized by prominent swelling of the lower extremities, which leads to disfigurement and disability. Methods of prevention include wearing shoes and using floor coverings. Mainstays of treatment include daily foot hygiene, compression bandaging, and when warranted, surgery of overlying nodules.
Lymphatic filariasis is a human disease caused by parasitic worms known as filarial worms. Usually acquired in childhood, it is a leading cause of permanent disability worldwide. While most cases have no symptoms, some people develop a syndrome called elephantiasis, which is marked by severe swelling in the arms, legs, breasts, or genitals. The skin may become thicker as well, and the condition may become painful. Affected people are often unable to work and are often shunned or rejected by others because of their disfigurement and disability.
Neglected tropical diseases (NTDs) are a diverse group of tropical infections that are common in low-income populations in developing regions of Africa, Asia, and the Americas. They are caused by a variety of pathogens, such as viruses, bacteria, protozoa, and parasitic worms (helminths). These diseases are contrasted with the "big three" infectious diseases, which generally receive greater treatment and research funding. In sub-Saharan Africa, the effect of neglected tropical diseases as a group is comparable to that of malaria and tuberculosis. NTD co-infection can also make HIV/AIDS and tuberculosis more deadly.
Mansonella perstans is a filarial (arthropod-borne) nematode (roundworm), transmitted by tiny blood-sucking flies called midges. Mansonella perstans is one of two filarial nematodes that causes serous cavity filariasis in humans. The other filarial nematode is Mansonella ozzardi. M. perstans is widespread in many parts of sub-Saharan Africa, parts of Central and South America, and the Caribbean.
The eradication of infectious diseases is the reduction of the prevalence of an infectious disease in the global host population to zero.
Brugia timori is a filarial (arthropod-borne) nematode (roundworm) which causes the disease "Timor filariasis", or "Timorian filariasis". While this disease was first described in 1965, the identity of Brugia timori as the causative agent was not known until 1977. In that same year, Anopheles barbirostris was shown to be its primary vector. There is no known animal reservoir host.
The Filarioidea are a superfamily of highly specialised parasitic nematodes. Species within this superfamily are known as filarial worms or filariae. Infections with parasitic filarial worms cause disease conditions generically known as filariasis. Drugs against these worms are known as filaricides.
The London Declaration on Neglected Tropical Diseases was a collaborative disease eradication programme launched on 30 January 2012 in London. It was inspired by the World Health Organization roadmap to eradicate or prevent transmission for neglected tropical diseases by the year 2020. Officials from WHO, the World Bank, the Bill & Melinda Gates Foundation, the world's 13 leading pharmaceutical companies, and government representatives from US, UK, United Arab Emirates, Bangladesh, Brazil, Mozambique and Tanzania participated in a joint meeting at the Royal College of Physicians to launch this project. The meeting was spearheaded by Margaret Chan, Director-General of WHO, and Bill Gates, Co-Chair of the Bill & Melinda Gates Foundation.
Brugia is a genus for a group of small roundworms. They are among roundworms that cause the parasitic disease filariasis. Specifically, of the three species known, Brugia malayi and Brugia timori cause lymphatic filariasis in humans; and Brugia pahangi and Brugia patei infect domestic cats, dogs and other animals. They are transmitted by the bite of mosquitos.
Neglected tropical diseases in India are a group of bacterial, parasitic, viral, and fungal infections that are common in low income countries but receive little funding to address them. Neglected tropical diseases are common in India.
Kala azar in India refers to the special circumstances of the disease kala azar as it exists in India. Kala azar is a major health problem in India with an estimated 146,700 new cases per year as of 2012. In the disease a parasite causes sickness after migrating to internal organs such as the liver, spleen and bone marrow. If left untreated the disease almost always results in the death. Signs and symptoms include fever, weight loss, fatigue, anemia, and substantial swelling of the liver and spleen.
The Global Programme to Eliminate Lymphatic Filariasis (GPELF) is a World Health Organization project to eradicate the Filarioidea worms which cause the disease lymphatic filariasis and also treat the people who already have the infection.
The eradication of lymphatic filariasis is the ongoing attempt to eradicate the Filarioidea worms which cause the disease lymphatic filariasis and also treat the people who already have the infection.