scholarly journals Chikungunya virus: Molecular epidemiology of nonstructural proteins in Pakistan

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260424
Author(s):  
Nazish Badar ◽  
Aamer Ikram ◽  
Muhammad Salman ◽  
Muhammad Masroor Alam ◽  
Massab Umair ◽  
...  

Chikungunya virus (CHIKV) is considered a public health problem due to its rapid spread and high morbidity. In 2016–2017 an outbreak of CHIKV was occurred in Pakistan but the data regarding the genomic diversity of CHIKV was not reported. Hence, the current study aimed to determine the genetic diversity of CHIKVs in Pakistan. A cross sectional study was carried out using sera of infected CHIKV patients (n = 1549) during the outbreak in Pakistan (2016–2018). Nucleotide sequencing of non-structural genes of CHIKV from eight isolates were performed followed by phylogenetic analysis using Bayesian method. Phylogenetic analysis suggested that the Pakistani CHIKV strains belonged to Indian Ocean Lineage (IOL) of genotype ECSA and C1.3a clade. Furthermore, the Pakistani isolates showed several key mutations (nsP2-H130Y, nsP2-E145D, nsP4-S55N and nsP4- R85G) corresponding to mutations reported in 2016 Indian strains of CHIKV. The molecular analysis revealed high evolutionary potential of CHIKV strains as well as better understanding of enhanced virulence and pathogenesis of this outbreak. The study highlights the need to continue surveillance in order to understand viral diversity over time and to devise preventive measures to limit diseases transmission in the region.

2019 ◽  
Author(s):  
Demelash Wachamo ◽  
Fisseha Bonja

Abstract Background Opportunistic infections are late complications of HIV infection is the depletion of the immune system. It is a major public health problem and high morbidity AIDS patients die of AIDS-related infections in developing countries like Ethiopia. Identification of opportunistic infections (OIs) is important to develop a specific intervention. Therefore, this study aimed to assess the burden and associated factors of opportunistic infections.Method A facility-based cross-sectional study was conducted on 420 randomly selected HIV/AIDS patients taking anti-retroviral therapy. Data was collected from selected hospitals in Sidama Zone based on population proportion to size. Data was collected by a pre-tested questionnaire and a pre-tested checklist from the medical records of patients. Data entry and analyzed for descriptive and logistic regression models by SPSS v.23. The result declared as statistically significant at p < 0.05.Result The magnitude of opportunistic infections was 39.6%. Major identified OIs was oral candidacies 23.2%, recurrent bacterial pneumonia 21.5%, Herpes zoster 6.3%, and Pulmonary Tuberculosis 6.0%.The magnitude of opportunistic associated with; older age [AOR=2.69, 95% CI: 1.33-5.43], No formal education [AOR=3.12, 95% CI: 1.06-9.25], Low monthly income [AOR=2.27, 95%CI:1.35-3.83], initial CD4 count less than 200 cells/mm3 [AOR=1.91, 95% CI:1.05-3.46), WHO clinical stage II [AOR=2.43, 95% CI:1.34-4.42] and stage III and IV [AOR=4.27, 95% CI: 2.12-8.59], had no extra medicine additional to ART (prophylaxis) had [AOR= 5.91, 95% CI: 3.31-10.56], who interrupt ART medicines [AOR=2.03, 95% CI: 1.09- 3.80] and Khat chewing [AOR=5.48, 95% CI: 2.32-12.96] when compared to their counterparts.Conclusions The overall magnitude of opportunistic infections was high when compared with other studies. Health officials and clinicians need to give attention on the strengthening of the provision if ART with prophylaxis on early-stage and adhrerence, implementation of the TB/HIV collaboration activity, and early initiation of ART to reduce opportunistic infections.


2021 ◽  
Vol 9 (4) ◽  
pp. 119-129
Author(s):  
James Ssekitooleko

Anemia during pregnancy is a major public health problem, with a global prevalence of 41.8%. It is associated with high morbidity and mortality. Information on the prevalence of anemia and associated factors among pregnant women in the study area is limited. This study aimed at determining the prevalence and predictors of anemia among pregnant women attending antenatal clinics (ANC) in Kyenjojo and Kole Districts, Uganda. Cross-sectional study was conducted among randomly selected pregnant women. Quantitative data was collected using a structured questionnaire that captured demographic and obstetric characteristics. Haemoglobin concentration (Hb) was determined using HemoCue 201+. The study outcome was the prevalence of anaemia (Hb <11 g/dl). Chi-square, odds ratio, and logistic regression were used to test for associations. Of the total 760 pregnant women who participated in this study, 20.1% were anaemic. The prevalence varied from 13.4% in Kyenjojo to 26.9% in Kole District. Of 153 anaemic women, 121 (97%) were mildly anaemic, 27 (18%) moderately anemic, and 5(3%) severely anemic. Malaria infection [AOR: 0.46, 95% CI (0.26 – 0.83)], primigravida [AOR: 0.52, 95% CI: 0.29-0.93], and residing in Kole [AOR: 0.50, 95% CI: 0.32-0.76] were significant predictors of low haemoglobin concentration. This study highlighted the high prevalence of anaemia in our settings and the significant association between anaemia and malaria among pregnant women. Therefore, routine screening of pregnant women for anemia, malaria, and other risk factors during their first ANC visit is recommended to identify those at risk and prompt management provided to curb their negative consequences.


Author(s):  
Prajita Mali ◽  
Eak Narayan Poudel ◽  
Sushmita Mali ◽  
Lisasha Poudel ◽  
Santosh Prakash Joshi

Background: Depression is a common public health problem among elders worldwide and is associated with high morbidity and disability. This study aims to assess depression and its associated factors among elderly in old-age homes and a community of Kathmandu district.Method: A comparative cross-sectional study recruited 122 elderly from old-age homes and a community of Kathmandu district. Depression was measured using the Geriatric Depression Scale-short scale (GDS-15). Socio-demographic and medical history was collected using semi-structured questionnaire. We utilized bivariate logistic regression to assess the association of depression with each variable. Results: The prevalence of depression among elderly in old-age homes was 74.6% and in community was 41.8%. The study found that elderly residing at old age homes were four (OR=4.087; 95% CI=2.373-7.038) times more likely to have depression than those residing in the community. Age was found to be associated with depression among the respondent of both settings. In old-age homes, not receiving old-age allowance, bad perception of life, bad social relation, having a chronic disease, lack of care from family, stress and weeping as stress coping strategy were associated with depression. In the community, stress, non-involvement in family decision making, feeling of neglect, dysfunctional capability, bad social relation, lesser monthly income had positive relation with depression.Conclusion: Depression is highly prevalent among Nepalese elderly, with higher burden in those living in old-age homes. This emphasizes the need for screening of depression among elderly, to initiate early intervention measures. 


2019 ◽  
Vol 15 ◽  
Author(s):  
Bekalu Getachew Gebreegziabher ◽  
Tesema Etefa Birhanu ◽  
Diriba Dereje Olana ◽  
Behailu Terefe Tesfaye

Background: Stroke is a great public health problem in Ethiopia. According to reports, in-hospital stroke mortality was estimated to be 14.7% in Ethiopia. Despite this, in this country researches done on factors associated with stroke sub-types were inadequate. Objective: To assess the Characteristics and risk factors associated with stroke sub-types among patients admitted to JUMC. Methods and materials: A retrospective cross sectional study was conducted from May 2017 to May 2018 in stroke unit of Jimma University Medical Center. A total of 106 medical charts of patients diagnosed with stroke were reviewed. Checklist comprising of relevant variables was used to collect data. SPSS version 21 was employed for data entry and analysis. Chi-square test was used to point-out association and difference among stroke sub-types. The data was presented using text, tables and figures. Result: From a total of 106 patients, 67(63.2%) were men. The mean ± SD of age was 52.67±12.46 years, and no significant association was found. Of all the patients, 59(55.6%) had ischemic strokes and 47(44.4%) had hemorrhagic strokes. The most common risk factor in the patients was alcohol use with a prevalence of 69.9%. Of all the risk factors, only sex, cigarettes smoking and dyslipidemia were significantly associated to sub-types of stroke. Conclusion: Ischemic stroke was the most common subtype of stroke. Sex of patient, cigarette smoking and dyslipidemia are significantly associated with the two stroke subtypes.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Monique Ameyo Dorkenoo ◽  
Martin Kouame Tchankoni ◽  
Degninou Yehadji ◽  
Kossi Yakpa ◽  
Mawèké Tchalim ◽  
...  

Abstract Background In March 2017, Togo was declared the first country in sub-Saharan Africa to eliminate lymphatic filariasis as a public health problem, but post-validation surveillance has been lacking. In some areas of the country, migrant groups from neighboring countries that are still endemic for LF pose a risk of reintroduction of LF to Togo. The objective of this study was to identify the risk posed by migrant groups by measuring their prevalence of LF infection and investigating any positive case using Togo’s case investigation algorithm to prevent resurgence of LF and sustain Togo’s elimination success. Method A cross-sectional study was conducted in 2018 in the northernmost region of the country. Three migrant populations were identified: (i) nomadic Peuhls, (ii) Togolese members of local communities who migrate annually to neighboring countries for seasonal labor, and (iii) refugees from Ghana who came to Togo because of a communal conflict in Ghana. A questionnaire was designed to collect data on demographics and history of LF and MDA; all participants were tested for circulating filariasis antigen (CFA) using the filariasis test strip (FTS). Any CFA-positive case was confirmed with nocturnal microfilaremia. Results Refugees, seasonal economic migrants and nomadic Peuhls represented 42.1%, 31.4% and 26.5% of the study participants, respectively. The overall prevalence of CFA was 4.2% (58/1391) with the highest prevalence in the nomadic Peuhl group (11.9%), but only one of them (0.07%) was confirmed positive with nocturnal microfilaremia. Using the case investigation algorithm, no other positive case was identified in the positive case’s surroundings. Conclusion This study demonstrates that nomadic Peuhls, with a CFA prevalence of 11.9%, pose a potential risk for reintroduction of LF into Togo while Ghanaian refugees and seasonal economic migrants do not appear to pose a significant risk. Periodic monitoring of migrants, especially the nomadic Peuhl population, is a potential post-validation surveillance approach that could be used to promptly detect any LF cluster that may arise.


Author(s):  
Cristina Alvarez-Peregrina ◽  
Clara Martinez-Perez ◽  
Cesar Villa-Collar ◽  
Cristina Andreu-Vázquez ◽  
Alicia Ruiz-Pomeda ◽  
...  

Background: Myopia is a public health problem, with estimations that 50% of the world population will be myopic by 2050. Some environmental factors, such as time spent outdoors, doing near work, and using digital devices, influence the development of myopia in children. Home confinement in Spain has increased these risk factors, so this study aims to investigate the impact of home confinement during the COVID-19 outbreak in the vision of school-aged children; Methods: A cross-sectional study in children between 5 and 7 years old that completed a visual screening and a questionnaire about their lifestyles at opticians in Spain in September and October of 2019 and 2020. Statistical analysis to compare lifestyles pre and post confinement, and vision in 2020 versus a similar cohort examined at the same opticians in 2019, was conducted; Results: Spanish children spent less time outdoors and more time doing near work in 2020 than in 2019 (p ≤ 0.001). There was a significant decrease of the spherical equivalent (mean ± standard deviation; 0.66 ± 2.03 D in 2019 vs. 0.48 ± 1.81 D in 2020; p ≤ 0.001); Conclusions: Lifestyles of Spanish children changed during the home confinement at the beginning of 2020. Together with changes in their lifestyles, spherical equivalents have decreased, which implies higher figures of myopia for children aged between 5 and 7.


2021 ◽  
pp. 088626052110051
Author(s):  
Claudia L. de Moraes ◽  
Érika B. dos Santos ◽  
Michael E. Reichenheim ◽  
Stella R. Taquette ◽  
Luciane Stochero ◽  
...  

Community violence (CV) is a global public health problem due to its high frequency and severe consequences. Although CV is one of the leading causes of death among adolescents, little is known about the everyday CV situations that do not lead to death. This study aimed to estimate the frequency of exposure to and involvement in CV situations among adolescent students from public and private schools in the city of Rio de Janeiro, Brazil. This was a cross-sectional study of 693 individuals in their second year of high school selected through stratified multistage random sampling. Information about their exposure to and involvement in CV was collected through a self-completed multidimensional questionnaire in the classrooms. For approximately 30% of the adolescents, someone close to them had been murdered, and 40% had already seen the corpse of a victim of homicide. Seventeen percent reported having been directly involved in CV situations. Approximately 38%, 13%, and 25% had been victims of robberies, interpersonal aggression, and death threats to either themselves or their relatives, respectively. Many of these situations occurred more than once. In general, CV was more frequently reported by boys and by those who did not live with both parents. Adolescents from higher economic classes experienced more interpersonal aggression and felt a greater need to carry a gun. Those who belonged to the lower economic classes and studied in public schools were more exposed to lethal violence than other students. The results call attention to the very high percentage of adolescent students that are involved in CV situations as well as to the differences in violence rates among population subgroups. Such findings should be considered when planning CV prevention and management actions in schools and other socialization spaces for adolescents.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1110.1-1111
Author(s):  
J. Qiao ◽  
S. X. Zhang ◽  
T. T. Zhang ◽  
J. Zhang ◽  
M. T. Qiu ◽  
...  

Background:Systemic sclerosis (scleroderma, SSc) is a rare complex connective tissue disease associated with high mortality and high morbidity1. Active SSc are typically treated with immunosuppressants, which may create a variety of severe side-effects, especially for long-term treatment2. As the pathogenesis of SSc is still a matter of debate, growing evidences have focused on the immune disorders3. However, the quantitative status of lymphocyte subsets in SSc patients are unclear and effects of immunomodulatory combination therapies (avoiding side-effects of conventional therapy) on the lymphocyte subsets are unknown.Objectives:To investigate the quantitative status of peripheral lymphocyte subpopulations and CD4+T subsets in SSc patients for the exploration of SSc pathogenesis and evaluate the effects of new immunomodulatory combination therapies on those cells.Methods:From July 2014 to December 2019, total 166 patients with SSc and 206 healthy controls (HCs) were enrolled in this study, in which, 79 follow-up patients received immunomodulatory drugs (IMiDs) such as low-dose interleukin-2, rapamycin, metformin, retinoic acid and coenzyme Q10. The absolute numbers of T, B, NK, CD4+T, CD8+T, Th1, Th2, Th17 and Tregs in peripheral blood of these subjects were detected by flow cytometry combined with standard absolute counting beads.Results:Patients with SSc had lower absolute counts of total T, NK, Th2, Th17 and Tregs as compared with those of HCs (P<0.05) (Figure 1). After immunomodulatory combination treatments, there were increases in a various of peripheral lymphocyte subsets such as T, B and CD8+T (P< 0.05). Moreover, the increased level of Tregs was much more dramatical than those of other lymphocyte subsets, resulting in the decrease ratios of Teffs/Tregs such as Th1/Tregs and Th2/Tregs and rebuilding immunologic equilibrium (Figure 2).Conclusion:This cross-sectional study clarified the abnormal status of lymphocyte subsets in SSc patients, suggesting lymphocyte subsets, especially Tregs, might be relevant and play a crucial role in the pathogenesis of SSc, thus providing a potential therapeutic target for SSc patients. Immunomodulatory combination therapies effectively increase the level of Tregs as well as other lymphocytes to some degree and maintain the immunologic equilibrium, which may help for SSc patients’ symptom remission.References:[1]Denton CP, Khanna D. Systemic sclerosis. Lancet 2017;390(10103):1685-99. doi: 10.1016/S0140-6736(17)30933-9 [published Online First: 2017/04/18][2]Winthrop KL, Weinblatt ME, Bathon J, et al. Unmet need in rheumatology: reports from the Targeted Therapies meeting 2019. Ann Rheum Dis 2020;79(1):88-93. doi: 10.1136/annrheumdis-2019-216151 [published Online First: 2019/10/31][3]Skaug B, Khanna D, Swindell WR, et al. Global skin gene expression analysis of early diffuse cutaneous systemic sclerosis shows a prominent innate and adaptive inflammatory profile. Ann Rheum Dis 2019 doi: 10.1136/annrheumdis-2019-215894 [published Online First: 2019/11/27]Acknowledgments :None.Disclosure of Interests:None declared


Author(s):  
Nafsika Michail ◽  
Ayse Ozbil ◽  
Rosie Parnell ◽  
Stephanie Wilkie

Childhood obesity is a public health problem with multiple effects on children’s life. Promoting Active School Travel (AST) could provide an inclusive opportunity for physical activity and shape healthy behaviours. Data for this cross-sectional study were drawn from questionnaires carried out in five primary schools located in Newcastle upon Tyne, UK, in neighbourhoods chosen for their variability in IMD (index of multiple deprivation) and spatial structure of street networks (measured through space syntax measure of integration). A randomly selected and heterogenic sample of 145 pupils (aged 9–10) completed an open-ended questionnaire to state what they like and dislike about their journey to school. Thematic analysis identified four typologies (environmental context, emotions, social influences and trip factors) based on the Theoretical Domains Framework (TDF) and specific themes and sub-themes underlying children’s affective experiences of their journeys to school. This study is the first known to authors to attempt to adapt the Capability, Opportunity and Motivation Behaviour (COM-B) model into AST and children’s experiences and associated behavioural domains with design aspects. Such an insight into children’s attitudes could inform urban planners and designers about how to apply more effective behaviour change interventions, targeting an AST increase among children.


Author(s):  
Desirée Mena-Tudela ◽  
Susana Iglesias-Casás ◽  
Víctor Manuel González-Chordá ◽  
María Jesús Valero-Chillerón ◽  
Laura Andreu-Pejó ◽  
...  

Background: Obstetric violence is a worldwide public health problem, which seems greater in Spain. As no studies were found that identify the most representative healthcare professionals, times, and areas involved in obstetric violence, the objective of this work was to study at what time of maternity, with which professionals, and in what areas women identified obstetric violence. Methods: This descriptive, retrospective, and cross-sectional study was performed from January 2018 to June 2019. The main variables were the area (hospital, primary care, both), the time (pregnancy, birth, puerperium), and the professionals attending to women. Results: Our sample comprised 17,541 participants. The area identified with the most obstetric violence for the different studied variables was hospitals. Women identified more obstetric violence at time of birth. Findings such as lack of information and informed consent (74.2%), and criticism of infantile behavior and treatment (87.6%), stood out. The main identified healthcare professionals were midwives and gynecologists, and “other” professionals repeatedly appeared. Conclusions: Having identified the professionals, times, and areas of most obstetric violence in Spain, it seems necessary to reflect on not only the Spanish National Health System’s structure and management but also on healthcare professionals’ training.


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