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Article ; Online: Correction

Mary Elizabeth Wilson / Albert Icksang Ko / Mitermayer G. Reis

PLoS Neglected Tropical Diseases, Vol 5, Iss

Collaborative Teaching and Learning: A Model for Building Capacity and Partnerships to Address NTDs.

2011 Volume 8

Keywords	Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
Language	English
Publishing date	2011-08-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Correction

Mary Elizabeth Wilson / Albert Icksang Ko / Mitermayer G. Reis

PLoS Neglected Tropical Diseases, Vol 5, Iss

Collaborative Teaching and Learning: A Model for Building Capacity and Partnerships to Address NTDs

2011 Volume 8

Keywords	Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
Language	English
Publishing date	2011-08-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Spatial and Simultaneous Seroprevalence of Anti-Leptospira Antibodies in Owners and Their Domiciled Dogs in a Major City of Southern Brazil

Aline do Nascimento Benitez / Thais Cabral Monica / Ana Carolina Miura / Micheline Sahyun Romanelli / Lucienne Garcia Pretto Giordano / Roberta Lemos Freire / Regina Mitsuka-Breganó / Camila Marinelli Martins / Alexander Welker Biondo / Isabela Machado Serrano / Thiago Henrique Carneiro Rios Lopes / Renato Barbosa Reis / Jancarlo Ferreira Gomes / Federico Costa / Elsio Wunder / Albert Icksang Ko / Italmar Teodorico Navarro

Frontiers in Veterinary Science, Vol

2021 Volume 7

Abstract: Although leptospirosis has been considered a major concern in urban areas, no study to date has spatially and simultaneously compared both owner and dog serology in households of major cities. Accordingly, the aim of the present study was to assess the ... ...

Abstract	Although leptospirosis has been considered a major concern in urban areas, no study to date has spatially and simultaneously compared both owner and dog serology in households of major cities. Accordingly, the aim of the present study was to assess the seroprevalence of Leptospira antibodies, evaluate associated risk factors and conduct spatial analyses in 565 randomly selected households, which included 597 dog owners and 729 dogs in Londrina, Southern Brazil. Seropositivity by MAT were detected in in 11/597 (1.84%) owners and in 155/729 (21.26%) dogs. The risk factors were evaluated with logistic regression analysis and spatial factors and case distribution were evaluated with kernel density analyses. The sera of 14/155 (9.03%) dogs reacted for more than one serovar with the same titer. Canicola was the most frequent serogroup, detected in 3/11 (27.27%) owners and 76/155 (49.03%) dogs. The highest titer among the owners was 1:3,200 and was detected in the same household with a titer of 1:800 in the dog. Simultaneous owner-dog seropositivity was found in 7/565 (1.23%) households, with three reacted against serogroup Canicola. Positive owners were detected in 4/565 (0.70%) households and positive dogs were detected in 141/565 (24.95%) households. The associated risks of infection for dogs were different from those associated with infection in owners. Risk analyses for Canicola also identified specific factors of infection. Regardless of owner and dog cases were not statistically clustered, the kernel map has shown dog positivity occurrence in the same hot locations and near positive owners. The dependent variable analysis and logit model suggested a greater likelihood of peri-domiciliary contact with Leptospira. In conclusion, exposure to Leptospira infection was significantly higher in dogs than in their owners and human cases spatially overlapped dog cases, implicating dogs as potential environmental sentinels for this disease. In addition, the associated risk may vary according to serogroup, and the observed ...
Keywords	zoonosis ; One Health ; serovar ; epidemiology ; kernell analysis ; Veterinary medicine ; SF600-1100
Subject code	630
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Epidemiological shift and geographical heterogeneity in the burden of leptospirosis in China

Pandji Wibawa Dhewantara / Abdullah A. Mamun / Wen-Yi Zhang / Wen-Wu Yin / Fan Ding / Danhuai Guo / Wenbiao Hu / Federico Costa / Albert Icksang Ko / Ricardo J. Soares Magalhães

Infectious Diseases of Poverty, Vol 7, Iss 1, Pp 1-

2018 Volume 14

Abstract: Abstract Background Leptospirosis morbidity and mortality rates in China have decreased since the 2000s. Further analyses of the spatiotemporal and demographic changes occurring in the last decade and its implication on estimates of disease burden are ... ...

Abstract	Abstract Background Leptospirosis morbidity and mortality rates in China have decreased since the 2000s. Further analyses of the spatiotemporal and demographic changes occurring in the last decade and its implication on estimates of disease burden are required to inform intervention strategies. In this study, we quantified the epidemiological shift and geographical heterogeneity in the burden of leptospirosis during 2005–2015 in China. Methods We used reported leptospirosis case data from 1st January 2005 to 31st of December 2015 that routinely collected by the China Information System for Disease Control and Prevention (CISDCP) to analyze the epidemiological trend and estimate the burden in terms of disability-adjusted life-years (DALYs) over space, time, and demographical groups. Results A total of 7763 cases were reported during 2005–2015. Of which, 2403 (31%) cases were the laboratory-confirmed case. Since 2005, the notified incidence rate was gradually decreased (P < 0.05) and it was relatively stable during 2011–2015 (P > 0.05). During 2005–2015, we estimated a total of 10 313 DALYs were lost due to leptospirosis comprising a total of 1804 years-lived with disability (YLDs) and 8509 years-life lost (YLLs). Males had the highest burden of disease (7149 DALYs) compared to females (3164 DALYs). The highest burden estimate was attributed to younger individuals aged 10–19 years who lived in southern provinces of China. During 2005–2015, this age group contributed to approximately 3078 DALYs corresponding to 30% of the total DALYs lost in China. Yet, our analysis indicated a declining trend in burden estimates (P < 0.001) since 2005 and remained relatively low during 2011–2015. Low burden estimates have been identified in the endemic regions where infections principally distributed. Most of the changes in DALY estimates were driven by changes in YLLs. Conclusions In the last 11-years, the burden estimates of leptospirosis have shown a declining trend across the country; however, leptospirosis should not be neglected as it remains an important zoonotic disease and potentially affecting the young and productive population in economically less-developed provinces in southern of China. In addition, while in the last five years the incidence has been reported at very low-level, this might not reflect the true incidence of leptospirosis. Strengthened surveillance in the endemic regions is, hence, substantially required to capture the actual prevalence to better control leptospirosis in China.
Keywords	Leptospirosis ; Epidemiology ; Burden ; China ; DALY ; Spatiotemporal trends ; Infectious and parasitic diseases ; RC109-216 ; Public aspects of medicine ; RA1-1270
Subject code	950
Language	English
Publishing date	2018-05-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Suicide in Brazilian indigenous communities

Thomas Adriano Lazzarini / Crhistinne Cavalheiro Maymone Gonçalves / Walter Martins Benites / Liliane Ferreira da Silva / Daniel Henrique Tsuha / Albert Icksang Ko / Robert Rohrbaugh / Jason Randolph Andrews / Julio Croda

Revista de Saúde Pública, Vol 52, Iss

clustering of cases in children and adolescents by household

2018

Abstract: ABSTRACT OBJECTIVE To estimate age and sex-specific suicide rates, compare suicide rates between indigenous communities, and quantify the frequency of intrafamilial suicide clustering. METHODS We performed a retrospective cohort study involving 14,666 ... ...

Abstract	ABSTRACT OBJECTIVE To estimate age and sex-specific suicide rates, compare suicide rates between indigenous communities, and quantify the frequency of intrafamilial suicide clustering. METHODS We performed a retrospective cohort study involving 14,666 indigenous individuals in reservations in Dourados, state of Mato Grosso do Sul, Brazil, from 2003 through 2013 using national and local census. RESULTS The overall suicide rate was 73.4 per 100,000 person-years. Adolescent males aged 15-19 and girls aged 10-14 had the highest rates for each sex at 289.3 (95%CI 187.5-391.2) and 85.3 (95%CI 34.9-135.7), respectively. Comparing the largest reservations, Bororo had a higher suicide rate than Jaguapiru (RR = 4.83, 95%CI 2.85-8.16) and had significantly lower socioeconomic indicators including income and access to electricity. Nine of 19 suicides among children under 15 occurred in household clusters. Compared with adult suicides, a greater proportion of child (OR = 5.12, 95%CI 1.89-13.86, p = 0.001) and adolescent (OR = 3.48, 95%CI 1.29-9.44, p = 0.017) suicides occurred within household clusters. CONCLUSIONS High rates of suicide occur among children and adolescents in these indigenous reservations, particularly in poor communities. Nearly half of child suicides occur within household clusters. These findings underscore the need for broad public health interventions and focused mental health interventions in households following a suicide.
Keywords	Suicide ; Child ; Adolescent ; Health of Indigenous Peoples ; Mental Health ; Health Vulnerability ; Cohort Studies ; Public aspects of medicine ; RA1-1270
Subject code	360
Language	English
Publishing date	2018-05-01T00:00:00Z
Publisher	Universidade de São Paulo
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Coinfection modifies carriage of enzootic and zoonotic parasites in Norway rats from an urban slum

Ticiana S. A. Carvalho‐Pereira / Fábio Neves Souza / Luana Ribeiro do Nascimento Santos / Gabriel Ghizzi Pedra / Amanda Minter / Thiago Campanharo Bahiense / Mitermayer Galvão Reis / Albert Icksang Ko / James E. Childs / Eduardo M. daSilva / Federico Costa / Mike Begon

Ecosphere, Vol 10, Iss 10, Pp n/a-n/a (2019)

2019

Abstract: Abstract We examine coinfection between helminth species and the bacterium Leptospira interrogans in a natural population of the Norway rat, Rattus norvegicus. We ask whether coinfection can influence the probability and intensity of infection of these ... ...

Abstract	Abstract We examine coinfection between helminth species and the bacterium Leptospira interrogans in a natural population of the Norway rat, Rattus norvegicus. We ask whether coinfection can influence the probability and intensity of infection of these enzootic and zoonotic parasites in urban rats, which may affect the loads of parasites excreted into the environment. Rodent sampling was carried out during two seasons in 2014 in a Brazilian urban slum. We sampled rats’ feces, kidney imprints, and urine to identify and quantify helminth eggs/larvae and infection by L. interrogans. Eleven species/groups of helminths and L. interrogans were identified among 299 captured rats. Simple correlation tests and generalized linear models were performed to identify general patterns of coinfection and potential direction of effects, respectively, after controlling for consolidated environmental and host biotic variables. Significant associations were illustrated in an interaction network. Focusing on parasites with the potential to cause zoonoses among humans, we observed that coinfection between L. interrogans and the nematode Angiostrongylus cantonensis was significantly more frequent than expected. Reduced prevalence of A. cantonensis was found in the presence of Nippostrongylus brasiliensis, and N. brasiliensis intensities (eggs per gram of feces) were increased with greater intensities of both L. interrogans and Strongyloides sp., the latter of which was, in turn, found to increase the intensities of A. cantonensis. A higher probability of finding L. interrogans was associated with infection by Strongyloides sp. Our study provides a novel perspective on evaluating helminth coinfection profiles in populations of naturally infected urban rats, moving beyond previous studies which have been limited to descriptions of co‐occurrence. Noticeably, infection risk was dependent on coinfection and this should be accounted for when targeting the control of zoonotic pathogens in natural populations.
Keywords	Angiostrongylus cantonensis ; coinfection ; helminths ; interaction network ; Leptospira interrogans ; Nippostrongylus brasiliensis ; Ecology ; QH540-549.5
Subject code	590
Language	English
Publishing date	2019-10-01T00:00:00Z
Publisher	Wiley
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Puerperal brain cryptococcoma in an HIV-negative woman successfully treated with fluconazole

José Edward Hagan / Jesângeli Sousa Dias / José Caetano Villasboas-Bisneto / Melissa Barreto Falcão / Albert Icksang Ko / Guilherme Sousa Ribeiro

Revista da Sociedade Brasileira de Medicina Tropical, Vol 47, Iss 2, Pp 254-

a case report

2014 Volume 256

Abstract: Cryptococcus spp. cerebral abscesses are uncommon in immunocompetent subjects. The recommended induction treatment is the administration of amphotericin B plus flucytosine combined with resection for lesions ≥3cm. In this paper, we describe an HIV- ... ...

Abstract	Cryptococcus spp. cerebral abscesses are uncommon in immunocompetent subjects. The recommended induction treatment is the administration of amphotericin B plus flucytosine combined with resection for lesions ≥3cm. In this paper, we describe an HIV-negative woman diagnosed with a large cryptococcoma in the immediate postpartum period. The lesion was not resected, and due to amphotericin B intolerance, she received an extended course of fluconazole monotherapy. There was no disease recurrence during the 4 years of follow-up. The abrupt onset of her symptoms following delivery suggests that she developed a postpartum immune reconstitution syndrome. This case also demonstrates that in specific situations fluconazole monotherapy can be attempted in immunocompetent patients with cryptococcoma.
Keywords	Cryptococcus ; Immune reconstitution inflammatory syndrome ; Treatment ; Medicine (General) ; R5-920 ; Medicine ; R
Language	Portuguese
Publishing date	2014-04-01T00:00:00Z
Publisher	Sociedade Brasileira de Medicina Tropical - SBMT
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Puerperal brain cryptococcoma in an HIV-negative woman successfully treated with fluconazole

José Edward Hagan / Jesângeli Sousa Dias / José Caetano Villasboas-Bisneto / Melissa Barreto Falcão / Albert Icksang Ko / Guilherme Sousa Ribeiro

Revista da Sociedade Brasileira de Medicina Tropical, Vol 47, Iss 2, Pp 254-

a case report

2014 Volume 256

Abstract	Cryptococcus spp. cerebral abscesses are uncommon in immunocompetent subjects. The recommended induction treatment is the administration of amphotericin B plus flucytosine combined with resection for lesions ≥3cm. In this paper, we describe an HIV-negative woman diagnosed with a large cryptococcoma in the immediate postpartum period. The lesion was not resected, and due to amphotericin B intolerance, she received an extended course of fluconazole monotherapy. There was no disease recurrence during the 4 years of follow-up. The abrupt onset of her symptoms following delivery suggests that she developed a postpartum immune reconstitution syndrome. This case also demonstrates that in specific situations fluconazole monotherapy can be attempted in immunocompetent patients with cryptococcoma.
Keywords	Cryptococcus ; Immune reconstitution inflammatory syndrome ; Treatment ; Medicine (General) ; R5-920 ; Medicine ; R
Language	Portuguese
Publishing date	2014-04-01T00:00:00Z
Publisher	Sociedade Brasileira de Medicina Tropical - SBMT
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Puerperal brain cryptococcoma in an HIV-negative woman successfully treated with fluconazole

José Edward Hagan / Jesângeli Sousa Dias / José Caetano Villasboas-Bisneto / Melissa Barreto Falcão / Albert Icksang Ko / Guilherme Sousa Ribeiro

Revista da Sociedade Brasileira de Medicina Tropical, Vol 47, Iss 2, Pp 254-

a case report

2014 Volume 256

Abstract	Cryptococcus spp. cerebral abscesses are uncommon in immunocompetent subjects. The recommended induction treatment is the administration of amphotericin B plus flucytosine combined with resection for lesions ≥3cm. In this paper, we describe an HIV-negative woman diagnosed with a large cryptococcoma in the immediate postpartum period. The lesion was not resected, and due to amphotericin B intolerance, she received an extended course of fluconazole monotherapy. There was no disease recurrence during the 4 years of follow-up. The abrupt onset of her symptoms following delivery suggests that she developed a postpartum immune reconstitution syndrome. This case also demonstrates that in specific situations fluconazole monotherapy can be attempted in immunocompetent patients with cryptococcoma.
Keywords	Cryptococcus ; Immune reconstitution inflammatory syndrome ; Treatment ; Medicine (General) ; R5-920 ; Medicine ; R
Language	Portuguese
Publishing date	2014-04-01T00:00:00Z
Publisher	Sociedade Brasileira de Medicina Tropical - SBMT
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Puerperal brain cryptococcoma in an HIV-negative woman successfully treated with fluconazole

José Edward Hagan / Jesângeli Sousa Dias / José Caetano Villasboas-Bisneto / Melissa Barreto Falcão / Albert Icksang Ko / Guilherme Sousa Ribeiro

Revista da Sociedade Brasileira de Medicina Tropical, Vol 47, Iss 2, Pp 254-

a case report

2014 Volume 256

Abstract	Cryptococcus spp. cerebral abscesses are uncommon in immunocompetent subjects. The recommended induction treatment is the administration of amphotericin B plus flucytosine combined with resection for lesions ≥3cm. In this paper, we describe an HIV-negative woman diagnosed with a large cryptococcoma in the immediate postpartum period. The lesion was not resected, and due to amphotericin B intolerance, she received an extended course of fluconazole monotherapy. There was no disease recurrence during the 4 years of follow-up. The abrupt onset of her symptoms following delivery suggests that she developed a postpartum immune reconstitution syndrome. This case also demonstrates that in specific situations fluconazole monotherapy can be attempted in immunocompetent patients with cryptococcoma.
Keywords	Cryptococcus ; Immune reconstitution inflammatory syndrome ; Treatment ; Medicine (General) ; R5-920 ; Medicine ; R
Language	Portuguese
Publishing date	2014-04-01T00:00:00Z
Publisher	Sociedade Brasileira de Medicina Tropical - SBMT
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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