1.Genomic variant surveillance of SARS-CoV-2 positive specimens using a direct PCR product sequencing surveillance (DPPSS) method.
Nicole Ann L. TUBERON ; Francisco M. HERALDE III ; Catherine C. REPORTOSO ; Arturo L. GAITANO III ; Wilmar Jun O. ELOPRE ; Kim Claudette J. FERNANDEZ
Acta Medica Philippina 2026;60(1):57-68
BACKGROUND AND OBJECTIVE
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as the causative agent of COVID-19 has significantly challenged the public health landscape in late 2019. After almost 3 years of the first ever SARS-CoV-2 case, the World Health Organization (WHO) declared the end of this global health emergency in May 2023. Although, despite the subsequent drop of COVID-19 cases, the SARS-CoV-2 infection still exhibited multiple waves of infection, primarily attributed to the appearance of new variants. Five of these variants have been classified as Variants of Concern (VOC): Alpha, Beta, Gamma, Delta, and the most recent, Omicron. Therefore, the development of methods for the timely and accurate detection of viral variants remains fundamental, ensuring an ongoing and effective response to the disease. This study aims to evaluate the feasibility of the application of an in-house approach in genomic surveillance for the detection of SARS-CoV-2 variants using in silico designed primers.
METHODSThe primers used for the study were particularly designed based on conserved regions of certain genes in the virus, targeting distinct mutations found in known variants of SARS-CoV-2. Viral RNA extracts from nasopharyngeal samples (n=14) were subjected to quantitative and qualitative tests (Nanodrop and AGE). Selected samples were then analyzed by RT-PCR and amplicons were submitted for sequencing. Sequence alignment analysis was carried out to identify the prevailing COVID-19 variant present in the sample population.
RESULTSThe study findings demonstrated that the in-house method was able to successfully amplify conserved sequences (spike, envelope, membrane, ORF1ab) and enabled identification of the circulating SARS-CoV-2 variant among the samples. Majority of the samples were identified as Omicron variant. Three out of four designed primers effectively bound into the conserved sequence of target genes present in the sample, revealing the specific SARSCoV-2 variant. The detected mutations characterized for Omicron found in the identified lineages included K417N, S477N, and P681H which were also identified as mutations of interest. Furthermore, identification of the B.1.448 lineage which was not classified in any known variant also provided the potential of the developed in-house method in detecting unknown variants of COVID-19.
CONCLUSIONAmong the five VOCs, Omicron is the most prevalent and dominant variant. The in-house direct PCR product sequencing surveillance (DPPSS) method provided an alternative platform for SAR-CoV-2 variant analysis which is accessible and affordable than the conventional diagnostic surveillance methods and the whole genome sequencing. Further evaluation and improvements on the oligonucleotide primers may offer significant contribution to the development of a specific and direct PCRbased detection of new emerging COVID-19 variants.
Sars-cov-2 ; Polymerase Chain Reaction ; Dna Primers ; Oligonucleotide Primers ; Computer Simulation ; Conserved Sequence ; Coronavirus ; Covid-19 ; Disease ; Emergencies ; Evaluation Studies As Topic ; Genes ; Genome ; Global Health ; Health ; Identification (psychology) ; Infection ; Infections ; Membranes ; Methods ; Mutation ; Oligonucleotides ; Organizations ; Population ; Public Health ; Rna ; Rna, Viral ; Sars Virus ; Sequence Alignment ; Severe Acute Respiratory Syndrome ; Syndrome ; Viruses ; Whole Genome Sequencing ; World Health Organization
2.Advancing the role of higher education institutions in attaining the health-related sustainable development goals: Proceedings of the 53rd Asia Pacific Academic Consortium for Public Health, 21-23 September 2022, Philippines
Maria Margarita M. Lota ; Paul Michael R. Hernandez ; Vivien Fe F. Fadrilan-camacho ; Fresthel Monica M. Climacosa ; Francis Andrew B. Cube ; Kim Leonard G. Dela luna ; Crystal Amiel M. Estrada ; Emerito Jose A. Faron ; Fernando B. Garcia jr. ; Myra S. Mistica ; Frederick S. Nieto ; Sharon Yvette Angelina M. Villanueva ; Vicente Y. Belizario jr.
Acta Medica Philippina 2025;59(4):10-13
Higher Education Institutions (HEIs) are acknowledged as key drivers in realizing health-related Sustainable Development Goals (SDGs). The University of the Philippines Manila, College of Public Health (UP CPH) together with the Asia-Pacific Academic Consortium for Public Health (APACPH), hosted the 53rd APACPH International Conference last 21-23 September 2022. The conference discussed current issues relating to the attainment of SDGs and promoted collaboration of leading academic institutions and other stakeholders in addressing various public health challenges. The conference revolved around the challenges and opportunities in attaining health-related SDGs, and the good practices and roles of HEIs in addressing health disparities. The lack of certificati on framework of public health tertiary programs, pedagogy and infrastructure, and ambiguous roles and network of public health professionals were discussed. The conference served as a platform for discussing potential resolutions and ways forward in addressing these challenges. Opportunities for improvement such as updating of policies and curricula, strengthening of internship and community engagement programs, establishment of capacity-building partnerships and programs, and developing multidisciplinary-competent faculty and students were identified. This paper providesthe highlights of the conference focusing on the good practices and roles of HEIs in addressing health disparities, the impact of COVID-19 pandemic, and other issues and challenges in attaining SDGs.
Human ; Sustainable Development ; Sustainable Development Goals ; Public Health
3.Health protocol practices and personal preventive measures among fully vaccinated individuals with comorbidities in the National Capital Region, Philippines during the COVID-19 pandemic: A mixed-method study
Maria Luisa Olano ; Matthew Spencer T. Ho ; Mareeya P. Yumena ; Diana Leah Mendoza ; Patricia Anne C. Ty ; Erin Grace B. Villanueva ; Christine Rozien M. Palayad ; Jaye Kirsten U. Melchor ; Chrissea B. Custodio
Acta Medica Philippina 2025;59(4):26-41
BACKGROUND AND OBJECTIVE
The Philippine Inter-Agency Task Force for the Management of Emerging Infectious Diseases implemented health protocol guidelines to reduce the risk of COVID-19 transmission. Individuals with comorbidities were advised to take precautionary measures due to their increased vulnerability. This study aimed to assess the relationship between knowledge, acceptance, and adherence to health protocols among fully vaccinated individuals with comorbidities in the National Capital Region, Philippines.
METHODSThe study employed an explanatory-sequential mixed-method design. The quantitative phase involved an online survey with 384 respondents. The survey included questions on socio-demographic profile, COVID-19 knowledge, acceptability of health protocols, and adherence to preventive practices. Chi-square Test of Independence and Pearson’s Correlation Test were used to analyze the data. Semi-structured interviews were conducted with 11 participants, providing rich insights into their personal experiences. The interview transcripts were analyzed using Colaizzi’s descriptive method with the aid of qualitative analysis software (MAXQDA), ensuring a rigorous approach to thematic analysis. The integration of the two phases was achieved by connecting quantitative results with qualitative insights, creating a comprehensive understanding of the phenomena under study.
RESULTSFindings showed that the relationship of sociodemographic characteristics and level of knowledge (Gender pCONCLUSION
The study suggests that multiple factors contribute to non-adherence to health protocols. Recognizing these holes and weaknesses in the COVID-19 pandemic response stresses the need for national leaders to place urgency on properly implementing preventive measures and providing health education to the masses during public health situations. Collaboration from all sectors is crucial in addressing public health crises. This study can be a valuable resource for future researchers, local government units, and policymakers in prioritizing public health care and pandemic preparedness.
Human ; Comorbidity ; Covid-19 ; Public Health Practice ; Vaccines
4.Filipino translation and cross-cultural adaptation of the diabetic foot knowledge subscale (DFKS) and foot self-care behavior scale (FSCBS) and its content validation and reliability testing
Aaron Patrick S. Manalo ; Aliyah Renee P. Quizon ; Jocel M. Regino ; Lia Katrina L. Lopez ; Mary Margaret Louise C. Quimson ; Justine Ann Marie V. De lara ; Christian Rey D. Rimando ; David Benjamin L. Ang
Acta Medica Philippina 2025;59(Early Access 2025):1-14
BACKGROUND
Type 2 diabetes is the most common type of diabetes in the Philippines. Diabetic foot complications represent a prevalent and significant chronic concern for individuals with type 2 diabetes. This poses an immediate community health concern, as diabetic complications may threaten an individual's well-being.
OBJECTIVEThis study intends to cross-culturally adapt the Diabetic Foot Knowledge Subscale (DFKS) and Foot Self-Care Behavior Scale (FSCBS) questionnaires into the Filipino language as an assessment tool among Filipinos with diabetes.
METHODSThe study employed a psychometric research design, where it entailed Phase A and Phase B. Phase A involved the forward translation of the DFKS and FSCBS questionnaires, followed by the synthesis of the translations and backward translation. Subsequently, an expert committee reviewed the translations and concluded the final version. The final translated versions of the questionnaires ensured that it can be understood by an individual who has a Grade 6 level of reading proficiency. Phase B entailed the validity testing with the evaluation of the expert committee, and reliability testing of the said questionnaires with a sample size of 30 participants. A wash-out period of 24 hours was given for the test-retest reliability, followed by data analysis. The validity and reliability of the questionnaires were measured using the item and scale content validity indices and the internal consistency and test-retest reliability, respectively, to ensure their accuracy and appropriateness. The content validity of the questionnaires was evaluated individually by the experts using a Likert scale from 1-4, with 4 being the highest meaning the item was very relevant and succinct. Scores per item were between 3 and 4, which indicate that the translated version of the items were relevant and succinct or were relevant but needed minor revisions.
RESULTSThe validity scores for the translated DFKS and FSCBS questionnaires were obtained using the Scale Content Validity Index (S-CVI) with a score of 0.96 and 0.92, respectively. Moreover, all items in the questionnaires obtained an Item Content Validity Index (I-CVI) of 0.88-1.00. The DFKS also has an acceptable internal consistency with a Cronbach’s alpha of 0.72, while the FSCBS has a good internal consistency with a Cronbach’s alpha of 0.85. The test-retest reliability shows an acceptable Spearman’s correlation at 0.76 for the DFKS and a strong positive Pearson correlation coefficient at 0.73 for the FSCBS.
CONCLUSIONThe validity of the two questionnaires was acceptable and the test-retest reliability showed a strong positive correlation among the items thereby making the cross-cultural adaptation of the questionnaires successful. The Filipino versions of the DFKS and FSCBS questionnaires accurately measure the knowledge and behavior of individuals with type 2 diabetes, respectively.
Human ; Diabetes Mellitus, Type 2 ; Diabetic Foot ; Public Health ; Cross-cultural Comparison
6.A recent situational analysis of the occupational safety and health landscape in the Philippines
Lea Elora A. Conda ; Celin Audrey V. Nuñ ; ez ; Dana Sophia Elizandra T. Uy ; Catherine S. Artaiz-cariaga ; Jhason John J. Cabigon ; Geminn Louis C. Apostol
Acta Medica Philippina 2025;59(10):21-29
OBJECTIVES
Workers are continuously exposed to occupational hazards and risks. By analyzing recent data on the status of occupational safety and health (OSH) in the Philippines, this study aimed to determine the common occupational injuries and diseases among Filipino workers, and preventive and control measures/activities and occupational safety and health policies and programs implemented across the country.
METHODSA review of data on Philippine OSH from the Integrated Survey of Labor and Employment (ISLE) by the Philippine Statistics Authority (PSA) covering data from 2015/2016, 2017/2018, and 2019/2020 was done. The number of occupational injury cases, types of injuries, and types of diseases were assessed as well as the implementation of OSH policies and programs. Descriptive statistics, simple T-test, and Pareto analysis were used to analyze the collated data sets.
RESULTSThe number of occupational injury and diseases in the Philippines across industries are decreasing. Superficial injuries and open wounds (56.47%), and Work-related Musculoskeletal Diseases (WMSDs) (61.82%) top the list as the most common injury and disease across industries, respectively. In 2018, OSH programs and preventive and control measures underwent reforms due to the implementation of the Republic Act (RA) 11058. For OSH programs, there is an increase in implementation between 2015 and 2019.
CONCLUSIONOccupational injury and occupational diseases in the Philippines across industries are declining. In terms of OSH measures and programs, there has been a significant change over the years, especially after the introduction of RA 11058 in 2018. A rise in the implementation of measures and policies was noted. However, there are still gaps that need to be addressed.
Occupational Medicine ; Occupational Health ; Public Health ; Preventive Medicine
7.Hesitancy towards COVID-19 booster vaccine and its associated factors among geriatric patients in a tertiary hospital in Region 1
The Filipino Family Physician 2025;63(1):26-32
BACKGROUND
The COVID-19 pandemic significantly impacted global health, especially among older adults at higher risk for severe illness. Despite the benefits of vaccination, booster vaccine hesitancy posed a barrier to optimal protection in the elderly population.
OBJECTIVEThis study aimed to identify factors associated with COVID-19 booster vaccine hesitancy among geriatric patients at the Family Medicine Outpatient Clinic of Region 1 Medical Center.
METHODSAn analytic, cross-sectional study was conducted with 183 geriatric patients aged 60 and above who had received the primary COVID-19 vaccine series. Data were collected using a 25-item questionnaire addressing sociodemographic information, medical history, COVID-19 knowledge, and vaccine attitudes. Statistical analyses, including chi-square tests and logistic regression, identified factors influencing booster vaccine hesitancy.
RESULTSThe majority of participants were between the ages of 60-69 (66.7%, n=122) and predominantly female (69.4%, n=127). High hesitancy rates were notably observed among elderly females (75.6%), individuals with lower educational attainment (79.7%), and single individuals (93.3%). Other significant factors included hypertension (76.5%) and the absence of prior influenza (81.5%) or pneumococcal (75.9%) vaccinations.
CONCLUSIONThese findings highlight the critical need for targeted educational efforts to mitigate COVID-19 vaccine hesitancy within specific subgroups, particularly elderly females, those with lower education levels, and individuals with certain health conditions. By implementing personalized outreach and emphasizing the advantages of vaccination, stakeholders can enhance vaccine uptake and improve health outcomes for this vulnerable segment of the population.
Human ; Vaccination Hesitancy ; Public Health ; Covid-19 ; Vaccines
8.Serving communities, shaping systems: The evolving role of public health nurses in the Philippines.
Philippine Journal of Nursing 2025;95(2):12-17
Public health nurses (PHNs) in the Philippines play a vital role in advancing Universal Health Care and Primary Health Care by serving as frontline leaders in community engagement, health promotion, and policy implementation. Despite their contributions, they face persistent challenges, including workforce shortages, wage disparities, hospital-centric education, and fragmented governance. Drawing from a reflexive narrative of community-based practice and organizational experience, this article situated the evolving role of PHNs within broader health systems transformation. The National Association of Public Health Nurses, Inc. (NAPHNI) established a unified platform for advocacy, leadership development, and recognition of advanced practice roles. Policy reforms such as a National Nursing Workforce Plan, passage of the Comprehensive Nursing Bill, and competitive compensation were imperative to empower PHNs. Strengthening public health nursing was discovered to be crucial in achieving health equity and a resilient healthcare system in the Philippines.
Human ; Public Health Nursing ; Universal Health Care ; Primary Health Care ; Health Equity
9.Progress on Wastewater-based Epidemiology in China: Implementation Challenges and Opportunities in Public Health.
Qiu da ZHENG ; Xia Lu LIN ; Ying Sheng HE ; Zhe WANG ; Peng DU ; Xi Qing LI ; Yuan REN ; De Gao WANG ; Lu Hong WEN ; Ze Yang ZHAO ; Jianfa GAO ; Phong K THAI
Biomedical and Environmental Sciences 2025;38(11):1354-1358
Wastewater-based epidemiology has emerged as a transformative surveillance tool for estimating substance consumption and monitoring disease prevalence, particularly during the COVID-19 pandemic. It enables the population-level monitoring of illicit drug use, pathogen prevalence, and environmental pollutant exposure. In this perspective, we summarize the key challenges specific to the Chinese context: (1) Sampling inconsistencies, necessitating standardized 24-hour composite protocols with high-frequency autosamplers (≤ 15 min/event) to improve the representativeness of samples; (2) Biomarker validation, requiring rigorous assessment of excretion profiles and in-sewer stability; (3) Analytical method disparities, demanding inter-laboratory proficiency testing and the development of automated pretreatment instruments; (4) Catchment population dynamics, reducing estimation uncertainties through mobile phone data, flow-based models, or hydrochemical parameters; and (5) Ethical and data management concerns, including privacy risks for small communities, mitigated through data de-identification and tiered reporting platforms. To address these challenges, we propose an integrated framework that features adaptive sampling networks, multi-scale wastewater sample banks, biomarker databases with multidimensional metadata, and intelligent data dashboards. In summary, wastewater-based epidemiology offers unparalleled scalability for equitable health surveillance and can improve the health of the entire population by providing timely and objective information to guide the development of targeted policies.
China/epidemiology*
;
Humans
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Wastewater/analysis*
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COVID-19/epidemiology*
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Public Health
;
Wastewater-Based Epidemiological Monitoring
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SARS-CoV-2
10.Public health nurses' provision of primary healthcare services in the context of universal health care.
Mary Cris T. ROMBAOA ; Charlie C. FALGUERA ; Danica V. DELIMA ; Mandy Roie A. ATENDIDO
Philippine Journal of Health Research and Development 2025;29(4):26-33
BACKGROUND
Public health nurses (PHNs) are a significant cadre of the primary healthcare workforce working toward achieving universal health care (UHC). Exploring their work activities is integral to understanding how UHC is implemented better.
OBJECTIVESTo describe and explore the work activities, roles, and functions of the PHNs in rendering primary care services in the context of UHC.
METHODSKey informant interviews were conducted with 12 PHNs in Tarlac Province who were working with permanent status in their respective rural health units (RHUs) for at least 1 year. They were selected through selection criteria. Data were recorded, transcribed, and subjected to thematic analysis.
RESULTSData analysis led to the emergence of 4 themes and 11 subthemes. The four themes were: (a) evolving scope and nature of work, (b) work challenges and barriers toward UHC implementation, (c) UHC outcomes, impact, and insights, and (d) communication and health promotion.
CONCLUSIONSThe study underscores the importance of exploring the PHNs’ roles and functions, as it offers a window on how they fulfill their duties toward achieving the goals of UHC. From the viewpoint of the interviewed PHNs, several elements and issues need to be addressed. Consequently, some positive impact on their work activities and functions emerged. Their nature of work brought them professional development and fulfillment as they render primary care and value-driven services despite the challenges and struggles they encountered in public health.
Human ; Primary Health Care ; Nurses, Public Health ; Universal Health Care


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