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More than 200 artists have recorded cover versions of " Imagine " . Joan Baez included it on 1972 's Come from the Shadows and Diana Ross recorded a version for her 1973 album , Touch Me in the Morning . In 1995 , Blues Traveler recorded the song for the Working Class Hero : A Tribute to John Lennon album and Dave Mat... |
Hancock performed it with Arie , Kristina Train and Greg Phillinganes at the 2010 Nobel Peace Prize Concert on 11 December . On 13 February 2011 , the recording — with Pink , Seal , Malian singer Oumou Sangaré , India.Arie and Jeff Beck won a Grammy award for Best Pop Vocal Collaboration .
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The song was performed as part of the closing ceremony of the 2012 Summer Olympics . Performed by the Liverpool Philharmonic Youth Choir and the Liverpool Signing Choir , the choirs sang the first verse and accompanied Lennon 's original vocals during the rest of the song . A cover performed by Emeli Sandé was also us... |
In 2015 , American singer / songwriter Lady Gaga performed the song at the 2015 European Games opening ceremony . The song was played for 70 @,@ 000 people in Baku , Azerbaijan that served as host of the event .
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= = Personnel = =
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John Lennon – vocals , piano
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Klaus Voormann – bass
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Alan White – drums
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The Flux Fiddlers – strings
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= = Charts and certifications = =
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= = = Documentaries = = =
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= Big Boy ( song ) =
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" Big Boy " aka " I 'm A Big Boy Now " was the first single ever recorded by the Jackson 5 , which was released by Steeltown Records in January 1968 . The group played instruments on many of their Steeltown compositions , including " Big Boy " . The song was neither a critical nor commercial success , but the Jackson ... |
The Jackson 5 would release a second single with Steeltown Records before moving to Motown Records . The group 's recordings at Steeltown Records were thought to be lost , but they were rediscovered more than 25 years later . They were remastered and released in 1995 , with " Big Boy " as the promotional lead single .... |
= = First record deal and lead single = =
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The Jackson 5 began their career performing at talent contests , which they would often win . During a performance at Beckman Junior High in Gary , Indiana , the group were brought to the attention of Gordon Keith — a singer , record producer , and a founder @-@ owner of Steeltown Records , a company also located in G... |
= = Reception and Jackson family = =
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The Jackson family gathered around a radio to hear the song broadcast for the first time . Michael Jackson — who was 9 years old at the time — said of the experience , " [ the family ] all laughed and hugged one another . We felt we had arrived . " The single " Big Boy " did not appear on any of Billboard 's music cha... |
= = Leaving Steeltown = =
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" The Jackson Five " would release a second and final single through Steeltown Records — " We Don 't Have To Be Over 21 ( to Fall in Love ) " . The two singles were to be supported by an eleven track studio album but it was never released . On July 26 , 1968 , the group signed a contract with Motown Records . However ... |
= = Rediscovery = =
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The master tapes to " Big Boy " were thought to be lost , but in 1994 , Jackson family friend Ben Brown found the tapes in his parents ' kitchen pantry . Brown reissued the record in 1995 , on the Inverted Records label — a week before Michael Jackson 's HIStory album was issued . He also remastered the song , selling... |
= Chagas disease =
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Chagas disease , also known as American trypanosomiasis , is a tropical parasitic disease caused by the protozoan Trypanosoma cruzi . It is spread mostly by insects known as Triatominae or kissing bugs . The symptoms change over the course of the infection . In the early stage , symptoms are typically either not prese... |
T. cruzi is commonly spread to humans and other mammals by the blood @-@ sucking " kissing bugs " of the subfamily Triatominae . These insects are known by a number of local names , including : vinchuca in Argentina , Bolivia , Chile and Paraguay , barbeiro ( the barber ) in Brazil , pito in Colombia , chinche in Cent... |
Prevention mostly involves eliminating kissing bugs and avoiding their bites . Other preventative efforts include screening blood used for transfusions . A vaccine has not been developed as of 2013 . Early infections are treatable with the medication benznidazole or nifurtimox . Medication nearly always results in a c... |
It is estimated that 7 to 8 million people , mostly in Mexico , Central America and South America , have Chagas disease as of 2013 . In 2006 , Chagas was estimated to result in 12 @,@ 500 deaths per year . Most people with the disease are poor , and most people with the disease do not realize they are infected . Large... |
= = Signs and symptoms = =
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The human disease occurs in two stages : an acute stage , which occurs shortly after an initial infection , and a chronic stage that develops over many years .
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The acute phase lasts for the first few weeks or months of infection . It usually occurs unnoticed because it is symptom @-@ free or exhibits only mild symptoms that are not unique to Chagas disease . These can include fever , fatigue , body aches , muscle pain , headache , rash , loss of appetite , diarrhea , nausea ... |
The most recognized marker of acute Chagas disease is called Romaña 's sign , which includes swelling of the eyelids on the side of the face near the bite wound or where the bug feces were deposited or accidentally rubbed into the eye . Rarely , young children , or adults may die from the acute disease due to severe i... |
If symptoms develop during the acute phase , they usually resolve spontaneously within three to eight weeks in approximately 90 % of individuals . Although the symptoms resolve , even with treatment the infection persists and enters a chronic phase . Of individuals with chronic Chagas disease , 60 – 80 % will never de... |
The symptomatic ( determinate ) chronic stage affects the nervous system , digestive system and heart . About two @-@ thirds of people with chronic symptoms have cardiac damage , including dilated cardiomyopathy , which causes heart rhythm abnormalities and may result in sudden death . About one @-@ third of patients ... |
20 % to 50 % of individuals with intestinal involvement also exhibit cardiac involvement . Up to 10 % of chronically infected individuals develop neuritis that results in altered tendon reflexes and sensory impairment . Isolated cases exhibit central nervous system involvement , including dementia , confusion , chroni... |
The clinical manifestations of Chagas disease are due to cell death in the target tissues that occurs during the infective cycle , by sequentially inducing an inflammatory response , cellular lesions , and fibrosis . For example , intracellular amastigotes destroy the intramural neurons of the autonomic nervous system... |
= = Transmission = =
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In Chagas @-@ endemic areas , the main mode of transmission is through an insect vector called a triatomine bug . A triatomine becomes infected with T. cruzi by feeding on the blood of an infected person or animal . During the day , triatomines hide in crevices in the walls and roofs .
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The bugs emerge at night , when the inhabitants are sleeping . Because they tend to feed on people 's faces , triatomine bugs are also known as " kissing bugs " . After they bite and ingest blood , they defecate on the person . Triatomines pass T. cruzi parasites ( called trypomastigotes ) in feces left near the site ... |
Scratching the site of the bite causes the trypomastigotes to enter the host through the wound , or through intact mucous membranes , such as the conjunctiva . Once inside the host , the trypomastigotes invade cells , where they differentiate into intracellular amastigotes . The amastigotes multiply by binary fission ... |
Dense vegetation ( such as that of tropical rainforests ) and urban habitats are not ideal for the establishment of the human transmission cycle . However , in regions where the sylvatic habitat and its fauna are thinned by economic exploitation and human habitation , such as in newly deforested areas , piassava palm ... |
T. cruzi can also be transmitted through blood transfusions . With the exception of blood derivatives ( such as fractionated antibodies ) , all blood components are infective . The parasite remains viable at 4 ° C for at least 18 days or up to 250 days when kept at room temperature . It is unclear whether T. cruzi can... |
Other modes of transmission include organ transplantation , through breast milk , and by accidental laboratory exposure . Chagas disease can also be spread congenitally ( from a pregnant woman to her baby ) through the placenta , and accounts for approximately 13 % of stillborn deaths in parts of Brazil .
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Oral transmission is an unusual route of infection , but has been described . In 1991 , farm workers in the state of Paraíba , Brazil , were infected by eating contaminated food ; transmission has also occurred via contaminated açaí palm fruit juice and garapa . A 2007 outbreak in 103 Venezuelan school children was at... |
Chagas disease is a growing problem in Europe , because the majority of cases with chronic infection are asymptomatic and because of migration from Latin America .
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= = Diagnosis = =
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The presence of T. cruzi is diagnostic of Chagas disease . It can be detected by microscopic examination of fresh anticoagulated blood , or its buffy coat , for motile parasites ; or by preparation of thin and thick blood smears stained with Giemsa , for direct visualization of parasites . Microscopically , T. cruzi c... |
Various immunoassays for T. cruzi are available and can be used to distinguish among strains ( zymodemes of T.cruzi with divergent pathogenicities ) . These tests include : detecting complement fixation , indirect hemagglutination , indirect fluorescence assays , radioimmunoassays , and ELISA . Alternatively , diagnos... |
= = Prevention = =
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There is currently no vaccine against Chagas disease . Prevention is generally focused on decreasing the numbers of the insect that spreads it ( Triatoma ) and decreasing their contact with humans . This is done by using sprays and paints containing insecticides ( synthetic pyrethroids ) , and improving housing and sa... |
A yeast trap can be used for monitoring infestations of certain species of triatomine bugs ( Triatoma sordida , Triatoma brasiliensis , Triatoma pseudomaculata , and Panstrongylus megistus ) .
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Promising results were gained with the treatment of vector habitats with the fungus Beauveria bassiana .
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Targeting the symbionts of Triatominae through paratransgenesis can be done .
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A number of potential vaccines are currently being tested . Vaccination with Trypanosoma rangeli has produced positive results in animal models . More recently , the potential of DNA vaccines for immunotherapy of acute and chronic Chagas disease is being tested by several research groups .
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Blood transfusion was formerly the second @-@ most common mode of transmission for Chagas disease , but the development and implementation of blood bank screening tests has dramatically reduced this risk in the 21st century . Blood donations in all endemic Latin American countries undergo Chagas screening , and testin... |
The US FDA has approved two Chagas tests , including one approved in April 2010 , and has published guidelines that recommend testing of all donated blood and tissue products . While these tests are not required in US , an estimated 75 – 90 % of the blood supply is currently tested for Chagas , including all units col... |
= = Management = =
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There are two approaches to treating Chagas disease : antiparasitic treatment , to kill the parasite ; and symptomatic treatment , to manage the symptoms and signs of the infection . Management uniquely involves addressing selective incremental failure of the parasympathetic nervous system . Autonomic disease imparted... |
= = = Medication = = =
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Antiparasitic treatment is most effective early in the course of infection , but is not limited to cases in the acute phase . Drugs of choice include azole or nitro derivatives , such as benznidazole or nifurtimox . Both agents are limited in their capacity to completely eliminate T. cruzi from the body ( parasitologi... |
Studies suggest antiparasitic treatment leads to parasitological cure in more than 90 % of infants but only about 60 – 85 % of adults treated in the first year of acute phase Chagas disease . Children aged six to 12 years with chronic disease have a cure rate of about 60 % with benznidazole . While the rate of cure de... |
Treatment of chronic infection in women prior to or during pregnancy does not appear to reduce the probability the disease will be passed on to the infant . Likewise , it is unclear whether prophylactic treatment of chronic infection is beneficial in persons who will undergo immunosuppression ( for example , organ tra... |
= = = Complications = = =
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In the chronic stage , treatment involves managing the clinical manifestations of the disease . For example , pacemakers and medications for irregular heartbeats , such as the anti @-@ arrhythmia drug amiodarone , may be life saving for some patients with chronic cardiac disease , while surgery may be required for meg... |
= = Epidemiology = =
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