ISRN Tropical Medicine http://www.hindawi.com The latest articles from Hindawi Publishing Corporation © 2014 , Hindawi Publishing Corporation . All rights reserved. A Review of Some Protozoan Parasites Causing Infertility in Farm Animals Wed, 04 Dec 2013 17:54:05 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/782609/ The paper reviews some protozoan parasites responsible for infertility in livestock with specific emphasis on neosporosis, sarcocystosis, toxoplasmosis, and trichomoniasis. It highlights the transmission, pathogenesis, clinical signs, diagnosis, prevention, control, and treatment of the individual parasite. It is concluded that these parasites are often overlooked during investigation into causes of abortion in livestock, and they may, however, be responsible for some infertilities in this group of animals which may result in severe economic losses. B. Y. Kaltungo and I. W. Musa Copyright © 2013 B. Y. Kaltungo and I. W. Musa. All rights reserved. Seroprevalence of Dengue IgG Antibodies among Healthy Adult Population in Lahore, Pakistan Thu, 12 Sep 2013 09:25:30 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/521396/ Background. Dengue is a mosquito-borne flavivirus infection prevalent in tropical and subtropical regions around the world. Aim of this study was to determine seroprevalence of anti-dengue IgG antibodies in healthy adult population of Lahore and also describe risk factors in relation to dengue seropositivity. Methods. In this cross-sectional study, 274 healthy adult individuals aged 15 years and above were randomly selected using multistage sampling technique. These individuals were interviewed between July–September 2012, using a semistructured questionnaire, followed by drawing 3 mL of their venous blood for dengue IgG test. Nova Tech ELISA kit with sensitivity and specificity of 96.5% and 97.5%, respectively, was used for serology. Results. Out of 274 participants, 184 (67.2%) were found to be positive for dengue IgG antibodies. Seroprevalence was higher among individuals with poor awareness about potential breeding sites for dengue mosquito (63.6%), followed by the subjects who had poor knowledge about dengue signs/symptoms and complications (52.2% and 68.5%, resp.). Conclusion. About two-third of healthy population of Lahore was also seropositive for anti-dengue IgG during July–September 2012, indicating a considerable burden of subclinical dengue infection in the city. Males were predominantly affected than the females. We found no statistical association between dengue IgG seropositivity and socioeconomic status, occupation, and knowledge about the disease. Shahid Mahmood, Hiba Nabeel, Saadia Hafeez, Urooj Zahra, and Hammad Nazeer Copyright © 2013 Shahid Mahmood et al. All rights reserved. Does Comorbidity Increase the Risk of Dengue Hemorrhagic Fever and Dengue Shock Syndrome? Tue, 20 Aug 2013 11:07:15 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/139273/ Background. Dengue fever is an emerging public health problem in Pakistan. The aim of this study was to determine the relationship between comorbid conditions in individuals suffering from dengue fever and the development of dengue hemorrhagic fever or dengue shock syndrome. Methods. In this age- and sex-matched case control study, total of 132 cases of dengue hemorrhagic fever/dengue shock syndrome and 249 randomly selected controls were recruited from two major teaching hospitals of Lahore, Pakistan. A semistructured questionnaire was used to collect data through interview and by reviewing clinical records. SPSS version 18 was utilized for statistical analysis including conditional logistic regression. Results. Odds of developing dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) among diabetics are higher than in controls, but this association was not found statistically significant (OR. 1.26; 95% CI. 0.78–2.03; ). Similarly, no association was observed in individuals suffering from hypertension (OR. 0.93; 95% CI. 0.57–1.49; ). Odds of developing DHF and DSS were higher for bronchial asthma (adjusted OR. 1.34) and pulmonary tuberculosis (adjusted OR. 1.41); however P values were insignificant. Conclusion. Presence of diabetes mellitus, hypertension, ischemic heart disease and bronchial asthma among patients contracted dengue fever will not increase the risk of dengue hemorrhagic fever and dengue shock syndrome. Shahid Mahmood, Saadia Hafeez, Hiba Nabeel, Urooj Zahra, and Hammad Nazeer Copyright © 2013 Shahid Mahmood et al. All rights reserved. Prevalence of Toxoplasma gondii and Associated Risk Factors among People Living with HIV at Gondar University Hospital, Northwest Ethiopia Mon, 12 Aug 2013 13:16:07 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/123858/ Background. Toxoplasma gondii is an obligate intracellular protozoan parasite and is a major opportunistic pathogen in immune-compromised hosts. This study assessed the prevalence of T. gondii and associated risk factors among people living with HIV. Methods and Materials. A cross-sectional study was carried out among people living with HIV attending Gondar University Hospital. A structured and pretested questionnaire was used to collect sociodemographic factors, and 10mL of venous blood was collected for anti-Toxoplasma antibody test and determination of CD4 levels. Serum was tested in duplicate for anti-Toxoplasma antibody using rapid slide agglutination test. Results. A total of 170 study subjects were enrolled in the study. Seroprevalence of T. gondii among the study participants was 76.5% (95% CI: 69.0–82.8). High proportions of seropositive individuals (64.7%) were found under the child bearing age groups. The mean CD4+ lymphocyte count of HIV monoinfected participants was cells/mm3 while coinfected study participants had mean CD4+ lymphocyte count of cells/mm3 with value of 0.01. Conclusion. The seroprevalence of T. gondii among people living with HIV was high. Cautious followup of HIV-positive patients is needed to prevent development of toxoplasmic encephalitis and other related complications. Dagnachew Muluye, Yitayih Wondimeneh, Yeshambel Belyhun, Feleke Moges, Mengistu Endris, Getachew Ferede, Gashaw Yitayew, and Digsu Negese Copyright © 2013 Dagnachew Muluye et al. All rights reserved. Detection and Enumeration of the Commonest Stool Parasites Seen in a Tertiary Care Center in South India Sun, 23 Jun 2013 14:20:14 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/808571/ The aim of this study was to identify common stool parasites in patients attending a tertiary care centre in South India. We evaluated 2355 stool samples and parasites were detected in 7.9% of samples. 41.1% of our patients were in the 45–58-year age group. Protozoal infections were the commonest seen in 7.8% of samples. Entamoeba histolytica was the commonest protozoa (4.6%) followed by Entamoeba coli (1.2%) and Giardia (0.8%). Entamoeba histolytica and Entamoeba coli were together seen in 0.63%, and they were the commonest organisms seen in samples with multiple-organism infection. Both were equally detected in diarrheal samples. Vani Chandrashekar Copyright © 2013 Vani Chandrashekar. All rights reserved. Soluble ST2 Does Not Regulate TNF- and IL-6 Production in Dengue Virus-Infected Human Monocytes Wed, 12 Jun 2013 10:24:16 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/230273/ Dengue virus (DENV) produces an acute infection that results in the overproduction of proinflammatory cytokines. Although increased levels of the immunoregulator soluble ST2 (sST2) protein have been reported in the serum of patients with dengue, its importance during DENV infection remains unclear. The purpose of this study was to evaluate the effect of a recombinant human sST2 protein on the production of TNF- and IL-6 in an in vitro model of DENV infection. Peripheral blood mononuclear cells (PBMCs) were permissive to in vitro DENV infection since viral antigen was detected in CD14+ monocytes by flow cytometry (median, 1%; range, 0–2.2), and in their supernatants TNF- and IL-6 were detected. However, sST2 protein was not detected. Using multiple staining on infected PBMC we found that only CD14+ cells produced TNF- and IL-6. Treatment with human recombinant sST2 protein decreased lipopolysaccharide-induced monocyte TNF- and IL-6 production. However, this effect was not observed when the monocytes were pretreated with sST2 and later infected with DENV-2. These results suggest that sST2 has different roles in the regulation of TNF- and IL-6 expression in human monocytes stimulated with LPS and DENV-2. Marisol Pérez-Acosta, Félix Giovanni Delgado, and Jaime E. Castellanos Copyright © 2013 Marisol Pérez-Acosta et al. All rights reserved. How Reliable Are Hematological Parameters in Predicting Uncomplicated Plasmodium falciparum Malaria in an Endemic Region? Sun, 02 Jun 2013 08:59:33 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/673798/ Background. Malaria remains endemic in Sub-Saharan Africa. Hematological changes that occur have been suggested as potential predictors of malaria. This study was aimed at evaluating the diagnostic relevance of hematological parameters in predicting malaria. Methods. A cross-sectional study involving 370 patients with signs and symptoms of malaria was conducted at Mulago Hospital, Kampala, from May, 2012 to February, 2013. Thin and thick blood films were prepared for each patient and stained with Giemsa to aid the detection of malaria parasites. Patients’ hematological parameters were determined. Results. Out of the 370 patients, 61 (16.5%) had malaria. Significant differences in the hematological parameters between P. falciparum malaria parasitemic patients and nonparasitemic patients were only observed in mean (±SD) of the differential monocyte count (10.89 ± 6.23% versus 8.98 ± 5.02%, ) and the platelet count (172.43 (± 80.41) cells/µl versus 217.82 ± (95.96) cells/µl ). The mean (±SD) values of the red blood cell indices (hemoglobin count, MCV, MCH, and MCHC), the differential neutrophil and lymphocyte counts, and the mean platelet volume (MPV) did not significantly differ between the two groups. Conclusion. Hematological changes are unreliable laboratory indicators of malaria in acute uncomplicated Plasmodium falciparum malaria. Haruna Muwonge, Sharif Kikomeko, Larry Fred Sembajjwe, Abdul Seguya, and Christine Namugwanya Copyright © 2013 Haruna Muwonge et al. All rights reserved. Pain and Its Consequences in Quality of Life: A Study with WHOQOL-Bref in Leprosy Patients with Neuropathic Pain Tue, 30 Apr 2013 09:20:17 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/987683/ Chronic neuropathic pain emerges as a challenge in the treatment of leprosy patients after multidrug therapy discharge. The aim of this study was to determine the quality of life and its repercussions in leprosy patients with chronic pain. We studied male and female patients with chronic neuropathic pain in the last year. Neuropathic pain was confirmed using Douleur Neuropathique en 4 (DN4) and its intensity evaluated by visual analogue scale (VAS). A general questionnaire was applied to evaluate quality of life (WHOQOL-bref). Statistical analyses were composed by descriptive and central tendency. Spearman correlation was used to identify the relation between pain intensity, quality of life domains, and facets. Multiple linear regressions were performed to verify the influence of pain intensity on each facet. Neuropathic pain patients scored worst in physical and environment domains. The low facets were related to pain and discomfort, thinking and concentration, sexual activity, and recreation opportunities. Pain intensity has a high negative influence on psychological domain and recreation opportunities. These findings should contribute to the development of rehabilitation programs considering patients needs to improve their quality of life and true social reintegration. Felipe J. J. Reis, Maria Katia Gomes, Jéssica Rodrigues, Artur Padão Gosling, Ana Paula Fontana, and Antonio José Ledo A. Cunha Copyright © 2013 Felipe J. J. Reis et al. All rights reserved. Current Bancroftian Filariasis Elimination on Thailand-Myanmar Border: Public Health Challenges toward Postgenomic MDA Evaluation Thu, 21 Mar 2013 13:21:46 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/857935/ From regional and global perspectives, Thailand has progressed toward lymphatic filariasis transmission-free zone in almost entire endemic provinces, being verified by WHO by the end of 2012 after the 5-year implementation of mass drug administration (MDA) with diethylcarbamazine and albendazole as part of the National Program to Eliminate Lymphatic Filariasis (PELF) (2002–2006) and a 4-year expansion of post-MDA surveillance (2007–2010). However, Thai PELF has been challenging sensitive situations of not only border crossings of local people on Thailand-Myanmar border where focal distribution of forest- and forest fringe-related border bancroftian filariasis (BBF) is caused by nocturnally subperiodic Wuchereria bancrofti in local people living in pockets of endemic villages, but also intense cross-border migrations of Mon and Tanintharyi workers from Myanmar to Thailand who harbor nocturnally periodic W. bancrofti microfilaremic infection causing the emergence of imported bancroftian filariasis (IBF). Thus, this paper discusses the apparent issues and problems pertaining to epidemiological surveillance and postgenomic MDA evaluation for 2010–2020 convalescent BBF and IBF. In particular, the population migration linked to fitness of benzimidazole-resistant W. bancrofti population is a topic of interest in this region whether the resistance is associated with pressure of the MDA 2 drugs and the vulnerabilities epidemiologically observed in complex BBF or IBF settings. Adisak Bhumiratana, Apiradee Intarapuk, Surachart Koyadun, Pannamas Maneekan, and Prapa Sorosjinda-Nunthawarasilp Copyright © 2013 Adisak Bhumiratana et al. All rights reserved. The Burden of New Leprosy Cases in India: A Population-Based Survey in Two States Wed, 20 Mar 2013 09:18:36 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/329283/ Objectives. To assess the burden of new leprosy cases in India and the efficiency of case detection work by ASHA in general health system. Methods. A sample survey of 804,536 persons was undertaken in 8 districts during 2009-2010: 4 each in Haryana (low endemic for leprosy) and Uttar Pradesh (high endemic for leprosy). About 20% population was covered from urban areas. Results. The survey suggested that burden of new case detection rate of leprosy in India per 10,000 population could be 4.41 in comparison to 1.09 as per government records. When present observation is adjusted to team performance in rural area, the NCDR increased to 10.64 per 10,000. This leads to suggest that NCDR in India could further increase to 9.76 times when adjusted to team performance. This data suggest that large numbers of early leprosy cases do not reach the health facilities where leprosy treatment is provided, although some chronically ill patients reach late, and thus multibacillary disease is found more in passive reporting. This could also be an indicator of a large number of established cases not being sufficiently self-motivated or lacking knowledge to utilize the free diagnosis and treatment services. Thus, the programme needs to be designed to meet these objectives effectively to better utilize the available services to reduce the leprosy burden. Conclusion. Active survey detected many folds higher leprosy cases in community, and this suggests that the information, education, and communication based approaches have a very minimal effect. If the programme continues to be based on IEC activities, the information should be designed in such a way that most persons suspected to have leprosy can know about free treatment, place of availability, and its effectiveness. However, leprosy elimination campaign surveys may be used as a tool to filter large pool of cases from community. Anil Kumar and Sajid Husain Copyright © 2013 Anil Kumar and Sajid Husain. All rights reserved. Factors Perceived by Caretakers as Barriers to Health Care for Under-Five Children in Mazabuka District, Zambia Thu, 14 Mar 2013 10:55:57 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/905836/ In rural areas of Zambia primary health care is provided by rural health centres (RHCs). However, accessibility to these services is limited. In the catchment areas of two RHCs in Mazabuka district (Chivuna and Magoye RHCs) we investigated factors that caretakers perceived as barriers to health care for under five children and how they cope with the barriers. Ten Focus Group Discussions (FGDs) with caretakers of children under-five years of age and key informant interviews with six health workers from the two RHCs, and eight community health workers were conducted in May 2006. The major factors perceived as barriers were poor quality of health services, unavailability of medicines, financial constraints, weak outreach programmes, bad scheduling of health programmes, poor communication, long distance to RHCs and low awareness levels of the importance of taking children for child health week among caretakers. Caretakers’ main coping strategy was the use of the folk sector of health care. The findings of this study highlight the challenges that exist in accessing of health care in resource-poor settings and underscore that the provision of health care services of good quality remains a major challenge. H. Halwindi, S. Siziya, P. Magnussen, and A. Olsen Copyright © 2013 H. Halwindi et al. All rights reserved. Profile of New Leprosy Cases Attending a South Indian Referral Hospital in 2011-2012 Tue, 15 Jan 2013 13:45:05 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/579024/ Background. Leprosy, a disabling infectious disease, is a major public health problem in some regions, requiring knowledge of its epidemiological variations so that strategies for case detection and disease control can be subsidized. Objectives. This study aims to evaluate the clinical and epidemiological profiles of leprosy patients attending a referral hospital in South India between 2011 and 2012. Methods. Medical records of newly diagnosed leprosy cases between April 2011 and March 2012 were analysed at the Department of Dermatology, Venereology and Leprosy, Father Muller Medical College Hospital, Mangalore, India. Data were obtained using a specific questionnaire and entered into the database system. Results. Adult males outnumbered females in our study. Detection rate among women and children under 15 years seems to be on the rise. Multibacillary leprosy was more frequent among the new cases with borderline tuberculoid as the predominant type, although smear positivity was seen in less than half of these clinical multibacillary cases. A higher occurrence of lepra reactions, neuritis, and deformities at the time of diagnosis was observed. Conclusion. The results of this study point to a high circulation of lepra bacilli in the community in the “elimination era” and also highlight the need for early diagnosis and appropriate treatment at the field level to prevent spread of bacilli and development of disabilities. Ramesh Marne Bhat and Prakash Chaitra Copyright © 2013 Ramesh Marne Bhat and Prakash Chaitra. All rights reserved. Prevalence and Risk Factors of Hepatitis B and Hepatitis C Virus Infections among Patients with Chronic Liver Diseases in Public Hospitals in Addis Ababa, Ethiopia Thu, 03 Jan 2013 15:39:46 +0000 http://www.hindawi.com/journals/isrn.tropical.medicine/2013/563821/ Background and Aims. Hepatitis B and hepatitis C viruses are major public health problems worldwide. The aim of this study was to determine the prevalence and risk factors of hepatitis B and C virus infections in patients with chronic liver diseases in three public hospitals in Addis Ababa City, Ethiopia. Methods. The study was conducted on 120 clinically diagnosed chronic liver disease patients. Possible associated factors with infections by the viruses were collected from patient using questionnaire. Serum was screened for the presence of hepatitis B surface antigen and antihepatitis C virus antibodies using qualitative immunochromatographic method. Results. Hepatitis B surface antigen was detected in 43 (35.8%) and anti-HCV antibody 27 (22.5%) patients clinically diagnosed to have chronic liver diseases. Hepatitis B virus infection was higher in males 29/76 (38.2%) compared to 14/44 (31.8%) females, while antihepatitis C virus antibody was higher in females 13/44 (29.5%) compared to 14/76 (18.4%) males. Of the study participants, 3 (2.5%) had dual hepatitis B and C virus coinfection. Conclusion. The prevalence of hepatitis B surface antigen and anti-HCV antibody was high in patients below 50 years of age. Dental extraction procedure at health facility was associated with hepatitis C virus infection (OR, 2.95; 95% CI, 1.21–7.17, ). Abel Girma Ayele and Solomon Gebre-Selassie Copyright © 2013 Abel Girma Ayele and Solomon Gebre-Selassie. All rights reserved.