Low schistosomiasis and soil-transmitted helminthiasis prevalence and intensities in selected communities in Davao de Oro and Davao del Norte, the Philippines: A setting for interruption of transmission?

Parasitic neglected tropical diseases, such as schistosomiasis and soil-transmitted helminthiasis (STH), remain as significant public health concerns in developing countries such as the Philippines. This study aimed to determine the prevalence and intensity of schistosomiasis and STH among school-age children (SAC) and adults in two co-endemic provinces in Mindanao in southern Philippines as part of monitoring of national control programs. Stool samples were collected, processed using Kato-Katz technique, and examined microscopically for presence of intestinal helminth ova. A total of 776 SAC and 526 adults participated in the study. Low schistosomiasis prevalence was generally observed in SAC (0.8%) and adults (0.4%). Generally low STH prevalence was reported in both SAC (3.9%) and adults (3.4%). Only three SAC had heavy intensity STH, which was not seen in adults. Results indicate a state of good morbidity control, which may be a result of effective implementation of mass drug administration (MDA) strategy for schistosomiasis, STH, and lymphatic filariasis in the last several years. The low prevalence and intensities of infections may also be partly attributed to the low diagnostic sensitivity of Kato-Katz technique in detecting low intensity intestinal helminth infections. While results of this study also indicate similarly low levels of both these infections in previous studies, sustaining high MDA coverage rates and addressing remaining challenges related to intensified case finding and treatment, improvements in safe water, sanitation, and hygiene, veterinary public health, and vector ecology and management will be necessary to interrupt transmission in these areas.

Spatial and temporal distribution of reported dengue cases and hot spot identification in Quezon City, Philippines, 2010-2017.

BACKGROUND: Dengue remains a major public health problem in the Philippines, particularly in urban areas of the National Capital Region. Thematic mapping using geographic information systems complemented by spatial analysis such as cluster analysis and hot spot detection can provide useful information to guide preventive measures and control strategies against dengue. Hence, this study was aimed to describe the spatiotemporal distribution of dengue incidence and identify dengue hot spots by barangay using reported cases from Quezon City, the Philippines from 2010 to 2017. METHODS: Reported dengue case data at barangay level from January 1, 2010 to December 31, 2017 were obtained from the Quezon City Epidemiology and Surveillance Unit. The annual incidence rate of dengue from 2010 to 2017, expressed as the total number of dengue cases per 10,000 population in each year, was calculated for each barangay. Thematic mapping, global cluster analysis, and hot spot analysis were performed using ArcGIS 10.3.1. RESULTS: The number of reported dengue cases and their spatial distribution varied highly between years. Local clusters were evident during the study period. Eighteen barangays were identified as hot spots. CONCLUSIONS: Considering the spatial heterogeneity and instability of hot spots in Quezon City across years, efforts towards the containment of dengue can be made more targeted, and efficient with the application of hot spot analysis in routine surveillance. This may be useful not only for the control of dengue but also for other diseases, and for public health planning, monitoring, and evaluation.

Knowledge, attitudes, and practices of public secondary school teachers on Zika Virus Disease: A basis for the development of evidence-based Zika educational materials for schools in the Philippines.

The Philippines is at risk in developing a Zika Virus (ZIKV) Disease Outbreak. One of the possible interventions is health education because students are potential health advocates and influencers to their communities through the knowledge transfers from their teachers. The competency of Filipino teachers on ZIKV Disease is yet to be described. This study aimed to assess the knowledge, attitudes, and practices of public secondary school teachers on ZIKV Disease. A modified version of the Knowledge, Attitudes, and Practices Survey Tool on Zika Virus Disease from the World Health Organization-Pan American Health Organization (WHO-PAHO) was used to assess the knowledge, attitudes, and practices of teachers of eight public secondary schools in five villages in Quezon City, Philippines. Out of the 609 respondents, 87.3% reported that their main source of information about ZIKV is tri-media, which includes television, print, and radio. Majority of the respondents mentioned that ZIKV is transmitted through a mosquito bite (80.3%). However, only half of the participants identified vector control as a preventive strategy. Moreover, only 54% admitted to have cleaned their water containers or water sources within the last week. Only a few identified mother-to-child (23%) and sexual intercourse (8%) as other means of transmission. Half (49.8%) of the respondents felt that it is possible to acquire ZIKV in their community, while 90% perceived that a private doctor (90%) or a public hospital (88%) can effectively treat the disease. Perceived stigma is high at 50%. This study showed there was good knowledge among teachers on vector transmission of ZIKV but poor knowledge on other aspects of the disease. Also, there was a low level of perceived susceptibility and severity of ZIKV which can be explained by the absence of a personal encounter with a Zika patient and the low number of cases in the Philippines. Half of the respondents said that they cleaned the possible mosquito breeding sites within the last week, followed by those who cleaned their water source more than a week ago (19%). None of the socio-demographic characteristics is significantly associated with respondents' knowledge on Zika. Only income and location of residence were found to be significantly associated with attitudes towards Zika. These findings call for a comprehensive training program that includes development of teaching materials for public secondary school teachers on ZIKV Disease based from this study.

Selected sociodemographic and psychosocial variables related to mothers' preference for childbirth setting in a barangay in Rosario, Cavite

OBJECTIVES: This study aimed to describe selected sociodemographic and psychosocial factors that are related to mothers' preference for childbirth setting in a barangay in Rosario, Cavite. METHODS: This study utilized a descriptive cross-sectional design. An interview guide was developed, pretested, and used in interviewing mothers who had given birth from September 1, 2007 to August 31, 2010. Data collected was encoded and analyzed using Epi-info 3.5.1 to compute for the means and proportions of relevant variables. RESULTS: A total of 271 mothers were interviewed, of whom 53.5% gave birth at health facilities. Mothers who were young adults, had at least graduated from high school, and/or had a family income of greater than Php 10,000 tended to prefer facility-based delivery. Those who had adequate knowledge of child delivery and postpartum complications, as well as those with a positive attitude towards facility-based delivery, gave birth in health facilities. Among the family members, the spouses had greater influence on the decisions of mothers regarding their preference. Whereas doctors appeared to have influenced the decisions of mothers who had facility-based deliveries, midwives influenced those who had home-based deliveries. CONCLUSION: The maternal mortality ratio in Rosario, Cavite and the facility-based delivery rate in the sampled barangay remain higher than the targeted rates. This necessitates more efforts to achieve Millennium Development Goal (MDG) No 5. The findings of this study can serve as a guide in developing health promotion and education intervention focusing on specific age group, significant others, and health providers in order to achieve the desired outcomes.

Schistosomiasis and soil-transmitted helminth infections in school children in the Lake Mainit area in Northeastern Mindanao: An opportunity for integrated helminth control in the school setting

OBJECTIVES:This study aimed to determine the epidemiologic status of schistosomiasis and soil-transmitted helminth (STH) infections in the Lake Mainit area in Northeastern Mindanao. METHODS: School children from the municipalities of Alegria and Mainit in Surigao del Norte, and Jabonga and Kitcharao in Agusan del Norte were targeted as participants. Stools were collected, processed through Kata Katz method, and examined. Data gathered were double-encoded and processed to derive parasitologic parameters that were used to categorize the municipalities based on the World Health Organization guidelines. RESULTS:The overall prevalence of schistosomiasis was 10.9%, while the prevalence of heavy intensity infections was 0.1%. Alegria and Mainit were classified as moderate-risk communities, while Jabonga and Kitcharao were classified as low-risk communities. The overall cumulative prevalence of STH infections was 43.9%, while prevalence of heavy intensity infection was 12.7% Jabonga and Kitcharao were classified as Category I communities, while the reset were classified as Category III. CONCLUSION:There is a need to consider implementation of school-based Mass Drug Administration (MDA) for schistosomiasis control in the same manner as in the implementation of MDA for STH control. Multisectoral involvement is necessary for integration of efforts in addressing the parasitic diseases as public health concerns in the area.