Region-specific improvisation on WHO case definition and environmental risk factors associated with dengue: a case-control analysis from Kerala, India.

BACKGROUND: Region-specific variations may occur in symptomatic manifestations that need to be addressed by dynamic case definitions. Environmental risk factors for dengue also vary widely across geographic settings. Our aim was to study the test positivity rate of the World Health Organization (WHO) 2009 probable dengue case definition and to suggest region-specific improvisations to it. The study also analyses the sociodemographic and environmental risk factors of dengue fever in South Kerala, India. METHODS: A case-control study was conducted in South Kerala from 2017 to 2019. Dengue reverse transcription polymerase chain reaction (RT-PCR)-positive and RT-PCR-negative 'probable dengue' patients were compared to identify significant symptoms for a modified definition of dengue. A group of afebrile community controls was compared with RT-PCR-positive dengue cases to study the environmental and behavioural risk factors. RESULTS: Arthralgia, palmar erythema and rashes have high discriminatory power (odds ratio [OR] >3) for identifying dengue. Redness of eyes, altered consciousness, abdominal distension and chills were found to moderately discriminate (OR 2-3) dengue. The adjusted analysis showed the presence of mosquito breeding sites (indoor p=0.02, outdoor p=0.03), solid waste dumping (p<0.001) and open water drainage in the compound (p=0.007) as significant predictors. CONCLUSIONS: Regional modifications should be considered when using the WHO definition in endemic settings. Control of mosquito breeding at the household level is the key towards dengue prevention.

Epidemiological and clinical characterization of dengue virus serotypes during 2017-2019 in southern Kerala, India.

BACKGROUND: In the context of the largest dengue outbreak in the state of Kerala, India in 2017, along with global evidence of changing epidemiology of dengue virus and its distribution, this study was planned to understand the epidemiological pattern of dengue infection and contemplate the clinical presentations of different serotypes. METHODS: This cross-sectional study was conducted in the Thiruvananthapuram and Kollam districts of Kerala, India, spanning 3 y from 2017 to 2019. We recruited adult patients based on the World Health Organization case definition of probable dengue fever to study their virological, spatial and clinical characteristics. RESULTS: Dengue infection was identified in 113 (33.9%) of the 333 probable dengue patients recruited. Dengue virus 1 (DENV1), along with its combinations (59.09%), was the predominant serotype during 2017, followed by DENV2. There was a marked increase in the proportion of DENV4 cases (34.56%) and concurrent infections (26%) in 2019. DENV3 infections were more likely to present with warning signs (adjusted relative risk 6.14 [95% confidence interval 1.3 to 29.4]) and a significantly lower platelet count (p=0.02). CONCLUSIONS: The results highlight the hyperendemicity of dengue infection in the state and the changing pattern of dengue virus predominance along with redominance. The rise in DENV4 and concurrent infections put forth the possibility of a more severe future outbreak.

Effectiveness of a Non-pharmacological Intervention to Control Diabetes Mellitus in a Primary Care Setting in Kerala: A Cluster-Randomized Controlled Trial.

Background: Despite being the first Indian state with a dedicated Non-Communicable Disease (NCD) program, glycemic control among a large proportion of patients is low in Kerala. This study tries to find evidence for a standardized non-pharmacological strategy delivered through Junior Public Health Nurses (JPHNs) in achieving and maintaining glycemic control among diabetic patients registered with NCD clinics of primary health care settings. Design: A cluster randomized controlled trial was conducted among adult patients with Diabetes Mellitus attending NCD clinics of primary care settings of South Kerala, India. JPHNs of the intervention group received additional module-based training while standard management continued in the control group. Sequence generation was done by random permuted blocks method and a cluster of 12 patients was selected from each of the 11 settings by computer-generated random numbers. Patients were followed up for 6 months with monthly monitoring of Fasting Blood Sugar (FBS), Post-Prandial Blood Sugar (PPBS), blood pressure, Body Mass Index (BMI), and health-related behaviors. Knowledge and skills/practice of JPHNs were also evaluated. Analysis of Covariance was done to study the final outcome adjusting for the baseline values and a model for glycemic control was predicted using multilevel modeling. Results: We analyzed 72 participants in the intervention group and 60 participants in the control group according to the intention-to-treat principle. The intervention was associated with a significant reduction in FBS (p < 0.001) and PPBS (p < 0.001) adjusting for the baseline values. The achievement of glycemic control was 1.5 (95% CI: 1.05-2.3) times better with intervention and they showed a better trend of maintenance of glycemic control (FBS, p = 0.003 and PPBS, p = 0.039). Adjusting for clustering and the baseline values, the intervention showed a significant effect on FBS (B = -3.1, SE = 0.57; p < 0.001) and PPBS (B = -0.81, SE = 0.3; p < 0.001) with time. Drug adherence score (p < 0.001), hours of physical activity (p < 0.001), BMI (p = 0.002), fruit intake (p = 0.004), and green leafy vegetable intake (p = 0.01) were the major predictors of FBS control. The practice/skills score of the JPHNs significantly improved with intervention (p < 0.001) adjusting for baseline values. Conclusion: A well-designed health worker intervention package incorporated into the existing health system can translate into attitude change and skill development in the health workers which can reflect in the improvement of glycemic control among the patients. Trial registration: [URL: http://www.ctri.nic.in], identifier [CTRI/2017/11/010622].

Strategies and challenges in Kerala's response to the initial phase of COVID-19 pandemic: a qualitative descriptive study.

OBJECTIVE: To understand the structures and strategies that helped Kerala in fighting the COVID-19 pandemic, the challenges faced by the state and how it was tackled. DESIGN: Qualitative descriptive study using focus group discussions and in-depth interviews. SETTING: State of Kerala, India. PARTICIPANTS: 29 participants: four focus group discussions and eight in-depth interviews. Participants were chosen purposively based on their involvement in decision-making and implementation of COVID-19 control activities, from the department of health and family welfare, police, revenue, local self-government and community-based organisations. Districts, panchayats (local bodies) and primary health centres (PHCs) were selected based on epidemiological features of the area like the intensity of disease transmission and preventive/containment activities carried out in that particular area to capture the wide range of activities undertaken in the state. RESULTS: The study identified five major themes that can inform best practices viz social capital, robust public health system, participation and volunteerism, health system preparedness, and challenges. This study was a real-time exploration of the intricacies of COVID-19 management in a low/middle-income country and the model can serve as an example for other states and nations to emulate or adjust accordingly. CONCLUSION: The study shows the impact of synergy of these themes towards more effective solutions; however, further research is much needed in examining the relationship between these factors and their relevance in policy decisions.

Efficacy of 2% lignocaine medicated pad for pain alleviation during rabies immunoglobulin administration: A randomized controlled trial.

BACKGROUND: Rabies immunoglobulin (RIG) for animal bite victims is usually administered around the wound without the use of any anesthetic. Theoretically, the topical use of 2% lignocaine can reduce the pain during the procedure. OBJECTIVES: This study aimed to determine the efficacy of 2% lignocaine medicated pad (LMP) for reducing pain during administration of RIG. METHODS: A randomized triple-blind controlled trial was done in a tertiary care setting in Kerala, India. The proximal and distal wounds of the patient with minimum two, Category III animal bite wounds were randomized to intervention and placebo arms, based on a previously generated random number sequence. Sterile gauze pads soaked with 2% lignocaine and normal saline were the intervention and placebo, respectively. Pain was the primary outcome measure and was assessed using numeric rating scale (NRS) and sound, eye, and motor pain (SEM) scale. The patient, outcome assessor, and statistician were blinded. RESULTS: The wound sites and size of 100 intervention and 100 control wounds were comparable. The score of all elements of the SEM, total SEM, and NRS score were significantly lower in the wounds, which were given LMP compared to the control wounds. The number needed to treat for satisfactory pain relief and immediate pain relief was 25 and 14, respectively. No serious or minor adverse events were reported in the trial. CONCLUSIONS: The use of a proven drug in a topical route optimizes pain reduction from iatrogenic cause for millions of animal bite victims around the world with very little additional financial burden.

Prevalence and associated factors of sarcopenia among patients underwent abdominal CT scan in Tertiary Care Hospital of South India.

OBJECTIVE: To estimate the proportion of radiologically significant (LSMI) sarcopenia and the factors associated with it among patients undergoing Computerized Tomography scan. METHODS: A Cross sectional study was conducted among 152 patients underwent CT scan in the radiology department of Government medical college Thiruvananthapuram. Sarcopenia was estimated based on lumbar skeletal muscle index obtained using cross sectional areas of various abdominal muscles by CT scan. The proportion of sarcopenia was estimated and associated factors studied. Binary logistic regression model was used to adjust the confounders. RESULTS: Out of 152 individuals, sarcopenia was present in a total of 82 (53.95%) individuals. Male gender (Adjusted OR= 8.42, 3.64 - 19.52 (95% CI)) was a risk factor for and a body mass index more than 25Kg/m2 (Adjusted OR= 0.36, 0.15- 0.67 (95% CI)) was a protective factor against sarcopenia. CONCLUSION: The burden of sarcopenia is found to be high and considering the double burden of sarcopenia and obesity in the Kerala community, newer strategies for health promotion and early detection need to be developed.

Stakeholder Perspective of Handling the Deceased during the Nipah Virus Outbreak in Kerala, South India, 2018.

In any outbreak situation, a poor stakeholder response can impede the outbreak control and can have high economic and social cost. We conducted a qualitative study to understand stakeholder response in handling of the Nipah deceased persons during the outbreak of Nipah in Kerala, 2018. To understand the responses and to generate knowledge from the data, we used grounded theory approach for the study and conducted in-depth interviews and focus group discussion. Mixed public response and swift state response emerged as the main themes in our study. Under the "mixed public response," three categories emerged, including anxiety and fear, conflicting religious beliefs, and humanitarian concern. Under the "swift state response," the categories emerged were critical resources and robust guidance. A collective effort involving the administration, local and religious groups, and a culturally acceptable scientific protocol proved to be good examples of gaining social acceptance. Kerala puts forth a model of efficient community engagement and communication to gain public support and acceptance in a fatal disease outbreak.