Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province
- Autores
- Fernández Brando, Romina Jimena; Sacerdoti, Flavia; Amaral, María Marta; Bernal, Alan Mauro; Da Rocha, Marcelo; Belardo, Marcela; Palermo, Marina; Ibarra, Cristina
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- EHEC is responsible for developing typical Hemolytic Uremic Syndrome (HUS) and Argentina has the highest incidence in the world. The endemo-epidemic behavior that HUS presents in our countrywas associated with person-to-person transmission. Since children below 5 years old are the most affected, our objective was to determine the frequency of kindergarten teachers with anti-LPS-EHECantibodies in serum. One hundred and fifty teachers from J.C. Paz district from Buenos Aires Province participated in an informative talk given by LuSUH, a non-governmental association, about good practices to reduce HUS transmission. Then, 63 of them voluntarily gave, under a signedwritten informed consent, a sample of blood obtained by finger puncture. A commercial ELISA (Chemtest, Arg) was used to detect specific IgM and IgG isotypes against 4 types of LPS-EHEC: O157, O145, O121 and O103. These variants represent approximately 87% of the EHEC serotypes associated with HUS in Argentina. The IgM finding was considered as indirect evidence of current infection with the EHEC specific serotype. Forty-two samples were evaluated, 60% (25/42) of them were positive for at least one type of LPS. Fifty-six percent of them (14/25) were IgM positive. Fifty percent of the positive samples were reactive for LPS O157, 26% for LPS O121, 12% for LPS O145 and 2% for LPS O103. Among the samples positive for LPS O157, 5% belonged to IgM isotype, 31% to IgG and 14% had both. The IgG isotype was the unique detected for LPS O145 and O103 (12 and2%, respectively). For LPS O121, the IgM isotype was detected in 2%, IgG in 12% and both isotypes in 12% of the samples. The elevated frequency of LPS-EHEC reactive samples (60%) reflects the high circulation of EHEC strains in our country. This agrees with the prevalence of anti-Stx2 antibodies reported in our population previously. Very strikingly, nearly half of these individuals carry IgM, suggesting that they would be in the active phase of infection.
Fil: Fernández Brando, Romina Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina
Fil: Sacerdoti, Flavia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
Fil: Amaral, María Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
Fil: Bernal, Alan Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina
Fil: Da Rocha, Marcelo. No especifíca;
Fil: Belardo, Marcela. Universidad Nacional de Jose Clemente Paz; Argentina
Fil: Palermo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina
Fil: Ibarra, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina
LXV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXVIII Reunión anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología
Argentina
Sociedad Argentina de Investigación Clínica
Sociedad Argentina de Inmunología
Sociedad Argentina De Fisiología - Materia
-
Inmunoglobulinas
TOXINA SHIGA
Escherichia coli productor de toxina shiga
prevalencia - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/189157
Ver los metadatos del registro completo
id |
CONICETDig_6cefa81707637d404b3dcdb0f0341770 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/189157 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires provinceFernández Brando, Romina JimenaSacerdoti, FlaviaAmaral, María MartaBernal, Alan MauroDa Rocha, MarceloBelardo, MarcelaPalermo, MarinaIbarra, CristinaInmunoglobulinasTOXINA SHIGAEscherichia coli productor de toxina shigaprevalenciahttps://purl.org/becyt/ford/3.3https://purl.org/becyt/ford/3EHEC is responsible for developing typical Hemolytic Uremic Syndrome (HUS) and Argentina has the highest incidence in the world. The endemo-epidemic behavior that HUS presents in our countrywas associated with person-to-person transmission. Since children below 5 years old are the most affected, our objective was to determine the frequency of kindergarten teachers with anti-LPS-EHECantibodies in serum. One hundred and fifty teachers from J.C. Paz district from Buenos Aires Province participated in an informative talk given by LuSUH, a non-governmental association, about good practices to reduce HUS transmission. Then, 63 of them voluntarily gave, under a signedwritten informed consent, a sample of blood obtained by finger puncture. A commercial ELISA (Chemtest, Arg) was used to detect specific IgM and IgG isotypes against 4 types of LPS-EHEC: O157, O145, O121 and O103. These variants represent approximately 87% of the EHEC serotypes associated with HUS in Argentina. The IgM finding was considered as indirect evidence of current infection with the EHEC specific serotype. Forty-two samples were evaluated, 60% (25/42) of them were positive for at least one type of LPS. Fifty-six percent of them (14/25) were IgM positive. Fifty percent of the positive samples were reactive for LPS O157, 26% for LPS O121, 12% for LPS O145 and 2% for LPS O103. Among the samples positive for LPS O157, 5% belonged to IgM isotype, 31% to IgG and 14% had both. The IgG isotype was the unique detected for LPS O145 and O103 (12 and2%, respectively). For LPS O121, the IgM isotype was detected in 2%, IgG in 12% and both isotypes in 12% of the samples. The elevated frequency of LPS-EHEC reactive samples (60%) reflects the high circulation of EHEC strains in our country. This agrees with the prevalence of anti-Stx2 antibodies reported in our population previously. Very strikingly, nearly half of these individuals carry IgM, suggesting that they would be in the active phase of infection.Fil: Fernández Brando, Romina Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Sacerdoti, Flavia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Amaral, María Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaFil: Bernal, Alan Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Da Rocha, Marcelo. No especifíca;Fil: Belardo, Marcela. Universidad Nacional de Jose Clemente Paz; ArgentinaFil: Palermo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Ibarra, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; ArgentinaLXV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXVIII Reunión anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de FisiologíaArgentinaSociedad Argentina de Investigación ClínicaSociedad Argentina de InmunologíaSociedad Argentina De FisiologíaFundación Revista Medicina2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/189157Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province; LXV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXVIII Reunión anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología; Argentina; 2020; 164-164CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://medicinabuenosaires.com/revistas/vol80-20/s5/Mv80s5.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:54:23Zoai:ri.conicet.gov.ar:11336/189157instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:54:23.589CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
title |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
spellingShingle |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province Fernández Brando, Romina Jimena Inmunoglobulinas TOXINA SHIGA Escherichia coli productor de toxina shiga prevalencia |
title_short |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
title_full |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
title_fullStr |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
title_full_unstemmed |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
title_sort |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province |
dc.creator.none.fl_str_mv |
Fernández Brando, Romina Jimena Sacerdoti, Flavia Amaral, María Marta Bernal, Alan Mauro Da Rocha, Marcelo Belardo, Marcela Palermo, Marina Ibarra, Cristina |
author |
Fernández Brando, Romina Jimena |
author_facet |
Fernández Brando, Romina Jimena Sacerdoti, Flavia Amaral, María Marta Bernal, Alan Mauro Da Rocha, Marcelo Belardo, Marcela Palermo, Marina Ibarra, Cristina |
author_role |
author |
author2 |
Sacerdoti, Flavia Amaral, María Marta Bernal, Alan Mauro Da Rocha, Marcelo Belardo, Marcela Palermo, Marina Ibarra, Cristina |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Inmunoglobulinas TOXINA SHIGA Escherichia coli productor de toxina shiga prevalencia |
topic |
Inmunoglobulinas TOXINA SHIGA Escherichia coli productor de toxina shiga prevalencia |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.3 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
EHEC is responsible for developing typical Hemolytic Uremic Syndrome (HUS) and Argentina has the highest incidence in the world. The endemo-epidemic behavior that HUS presents in our countrywas associated with person-to-person transmission. Since children below 5 years old are the most affected, our objective was to determine the frequency of kindergarten teachers with anti-LPS-EHECantibodies in serum. One hundred and fifty teachers from J.C. Paz district from Buenos Aires Province participated in an informative talk given by LuSUH, a non-governmental association, about good practices to reduce HUS transmission. Then, 63 of them voluntarily gave, under a signedwritten informed consent, a sample of blood obtained by finger puncture. A commercial ELISA (Chemtest, Arg) was used to detect specific IgM and IgG isotypes against 4 types of LPS-EHEC: O157, O145, O121 and O103. These variants represent approximately 87% of the EHEC serotypes associated with HUS in Argentina. The IgM finding was considered as indirect evidence of current infection with the EHEC specific serotype. Forty-two samples were evaluated, 60% (25/42) of them were positive for at least one type of LPS. Fifty-six percent of them (14/25) were IgM positive. Fifty percent of the positive samples were reactive for LPS O157, 26% for LPS O121, 12% for LPS O145 and 2% for LPS O103. Among the samples positive for LPS O157, 5% belonged to IgM isotype, 31% to IgG and 14% had both. The IgG isotype was the unique detected for LPS O145 and O103 (12 and2%, respectively). For LPS O121, the IgM isotype was detected in 2%, IgG in 12% and both isotypes in 12% of the samples. The elevated frequency of LPS-EHEC reactive samples (60%) reflects the high circulation of EHEC strains in our country. This agrees with the prevalence of anti-Stx2 antibodies reported in our population previously. Very strikingly, nearly half of these individuals carry IgM, suggesting that they would be in the active phase of infection. Fil: Fernández Brando, Romina Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina Fil: Sacerdoti, Flavia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina Fil: Amaral, María Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina Fil: Bernal, Alan Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina Fil: Da Rocha, Marcelo. No especifíca; Fil: Belardo, Marcela. Universidad Nacional de Jose Clemente Paz; Argentina Fil: Palermo, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina Fil: Ibarra, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Fisiología y Biofísica Bernardo Houssay. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Fisiología y Biofísica Bernardo Houssay; Argentina LXV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXVIII Reunión anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología Argentina Sociedad Argentina de Investigación Clínica Sociedad Argentina de Inmunología Sociedad Argentina De Fisiología |
description |
EHEC is responsible for developing typical Hemolytic Uremic Syndrome (HUS) and Argentina has the highest incidence in the world. The endemo-epidemic behavior that HUS presents in our countrywas associated with person-to-person transmission. Since children below 5 years old are the most affected, our objective was to determine the frequency of kindergarten teachers with anti-LPS-EHECantibodies in serum. One hundred and fifty teachers from J.C. Paz district from Buenos Aires Province participated in an informative talk given by LuSUH, a non-governmental association, about good practices to reduce HUS transmission. Then, 63 of them voluntarily gave, under a signedwritten informed consent, a sample of blood obtained by finger puncture. A commercial ELISA (Chemtest, Arg) was used to detect specific IgM and IgG isotypes against 4 types of LPS-EHEC: O157, O145, O121 and O103. These variants represent approximately 87% of the EHEC serotypes associated with HUS in Argentina. The IgM finding was considered as indirect evidence of current infection with the EHEC specific serotype. Forty-two samples were evaluated, 60% (25/42) of them were positive for at least one type of LPS. Fifty-six percent of them (14/25) were IgM positive. Fifty percent of the positive samples were reactive for LPS O157, 26% for LPS O121, 12% for LPS O145 and 2% for LPS O103. Among the samples positive for LPS O157, 5% belonged to IgM isotype, 31% to IgG and 14% had both. The IgG isotype was the unique detected for LPS O145 and O103 (12 and2%, respectively). For LPS O121, the IgM isotype was detected in 2%, IgG in 12% and both isotypes in 12% of the samples. The elevated frequency of LPS-EHEC reactive samples (60%) reflects the high circulation of EHEC strains in our country. This agrees with the prevalence of anti-Stx2 antibodies reported in our population previously. Very strikingly, nearly half of these individuals carry IgM, suggesting that they would be in the active phase of infection. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Reunión Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/189157 Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province; LXV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXVIII Reunión anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología; Argentina; 2020; 164-164 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/189157 |
identifier_str_mv |
Detection of serum anti-lipopolysaccharides (lps) antibodies from enterohemorrhagic e. coli (ehec) in asymptomatic kindergarten teachers of buenos aires province; LXV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LXVIII Reunión anual de la Sociedad Argentina de Inmunología y Reunión anual de la Sociedad Argentina de Fisiología; Argentina; 2020; 164-164 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://medicinabuenosaires.com/revistas/vol80-20/s5/Mv80s5.pdf |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.coverage.none.fl_str_mv |
Nacional |
dc.publisher.none.fl_str_mv |
Fundación Revista Medicina |
publisher.none.fl_str_mv |
Fundación Revista Medicina |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613652451164160 |
score |
13.070432 |