scholarly journals Contaminated Pond Water Favors Cholera Outbreak at Haibatpur Village, Purba Medinipur District, West Bengal, India

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Dilip Kumar Biswas ◽  
Rama Bhunia ◽  
Dipankar Maji ◽  
Palash Das
Keyword(s):  
Risk Factors ◽  
Attack Rate ◽  
Stool Specimen ◽  
West Bengal ◽  
Health Workers ◽  
Pond Water ◽  
Underground Water ◽  
Control Measures ◽  
Cholera Outbreak ◽  
Epidemic Curve

Health workers reported an increased number of diarrhea cases at Haibatpur village on June 17, 2012. This outbreak was investigated with the followingobjectives: to confirm the existence of diarrhea outbreak, to find out the risk factors, and propose control measures. Cases were listed; spot map and epidemic curve were drawn. Attack rate was calculated by age and sex and risk factors were found out by calculating odds ratio (OR) with 95% confidence interval (CI). Rectal swabs were taken and water specimens were collected for laboratory test. Forty-one cases of patients were identified with overall attack rate (AR) was 5% (41/780). AR among men was higher 6% (25/404) than women. There was no death.V. cholerae01 Eltor Ogawa was isolated from one (1/4) stool specimen. Spot map showed cases clustered around two ponds which were contaminated with coliform organisms. The underground water was a bit saline in nature. Using pond water for preparation of fermented rice (Panta Bhat) (OR 4.73, 95% CI 1.69–13.51), washing utensil in pond water (OR 7.31, 95% CI 1.77–42.29) were associated with cholera outbreak. Health education was done to villagers. Disinfection of two ponds with bleaching powder was done. We proposed supplying of safe drinking water and repairing defective deep tube well to village.

scholarly journals A ASSESSMENT OF RISK FACTORS AND DETERMINATION OF VACCINE EFFICACY FOR MEASLES OUTBREAK DURING APRIL 2017 IN DHOK KAZIN, ISLAMABAD

2019 ◽  
Vol 8 (4) ◽  
pp. 190-196
Author(s):  
Muhammad Wasif Malik ◽  
Mumtaz Ali Khan ◽  
Muhammad Salman ◽  
Muazam Abbas Ranjha ◽  
Tayyab Razi Rathore ◽  
...  
Keyword(s):  
Risk Factors ◽  
Vaccine Efficacy ◽  
Attack Rate ◽  
Vaccine Coverage ◽  
Disease Outbreak ◽  
Control Measures ◽  
Age Group ◽  
Health Administration ◽  
Female Ratio ◽  
Measles Outbreak

Background: On 13th April 2017, 3 measles cases were reported in Dhok Kazin, Islamabad to National Institute of Health, Islamabad. Federal Disease Surveillance & Response Unit on request of Islamabad Capital Territory (ICT) health administration started disease outbreak investigation and active case finding. The study was aimed to identify risk factors associated with disease outbreak, to assess vaccine coverage and vaccine efficacy in the outbreak area, and to suggest control measures. Methods: To determine possible risk factors age and sex matched case-control study was conducted in April, 2017. A case was defined as "Any resident of Dhok Kazin, presented with fever and maculopapular rash with any of signs/symptoms like coryza, conjunctivitis, cough, otitis media or pneumonia after March 20 to April 30, 2017". For each case 04 matched controls were selected. A structured questionnaire prepared to collect data. Vaccine coverage survey was conducted. Uni and multivariate analyses and vaccine efficacy were calculated. Results: A total of 14 cases identified including 11 cases found on active search. Cases were compared with 57 matched controls. Mean age was 39 months (range 08- 132 months). Among cases male to female ratio observed was 1:2.5. Overall attack rate was 1.2%, while most severely affected age-group was <12 months (AR=10.3%). The most common complications were diarrhea n=8 (57.1%) and pneumonia n=1 (7.1%). On vaccine coverage survey in 230 households, 31(70.5%) out of 44 children checked were vaccinated. The un-vaccinated children had attack rate of 14.3% while vaccinated had attack rate of 6.7%. The vaccine efficacy calculated was 53%. Significant association found in risk factors were; contact with positive case [OR 19.5, 95% CI; 4.5-84, P=0.00], unvaccinated children [OR=10.0, 95%, CI;1.2.0-49.3, P= 0.003], Mother illiteracy [OR 10.2, 95% CI; 2.5-41, P=0.00], Misconception about vaccination [OR 13.2, 95%, CI;3.1-57.1, P=0.00), vaccinator not visited home as a part of outreach activity [OR=6.4, 95%CI;1.7-23.4, P=0.00]. Reasons for non-vaccination were found to be misconception about vaccination (OR=34.8, 95%CI=5.5-219.7) and mother's illiteracy (OR=6.4, 95%CI=1.2-34.8). Conclusion: Most severely affected age group was 12 months and below. Low immunization rates were the most probable cause of outbreak. Case contacts, partial vaccination, misconception of vaccination, no visit of vaccinator to home, and mother's education were risk factors significantly associated with Measles outbreak. Findings were shared with the district health authorities for implementation of control measures.

scholarly journals 59Outbreak investigation of dengue fever in union council (UC) Bharakahu, Islamabad, Pakistan, 2019

2021 ◽  
Vol 50 (Supplement_1) ◽  
Author(s):  
Sajjad Ahmad Khan Sajjad Khan
Keyword(s):  
Dengue Fever ◽  
Attack Rate ◽  
Health Workers ◽  
Nonstructural Protein ◽  
Health Department ◽  
Control Measures ◽  
Stagnant Water ◽  
Blood Samples ◽  
Breeding Sites ◽  
Nonstructural Protein 1

Abstract Background During third week of September 2019, lady health workers reported twelve suspected cases of dengue fever from UC Bharakahu, Islamabad (population 70,000) to health department. Outbreak investigation conducted with objectives to determine risk factors and recommend control measures. Methods Investigation conducted from 20th September to 04th November 2019. Case was defined as any resident of UC Bharakahu with fever and two or more of following signs/symptoms; headache, retro-orbital pain, arthralgia, myalgia, petechial rash with NS1 (Nonstructural Protein 1) positive during 12th August to 18th November 2019. Age and sex matched healthy controls recruited from same neighborhood. Blood samples from seven suspected cases sent for laboratory confirmation. Results Total 993 houses surveyed and 113 cases identified. Mean age was 34.2 years (range 13-90 years). Most affected age group was 35-44 years (Attack Rate 0.78%), Overall attack rate was 0.15%. Males were predominantly involved n = 70 (62%). Out of total cases, 34 (70%) had stagnant water inside and around houses (OR 2.0, CI 1.06-3.75, p &lt; 0.005), 40 (35%) used repellent lotions (OR 0.55, CI 0.32-0.95, p &lt; 0.05), 34 (30%) used insecticide spray (OR 0.35, CI 0.20-0.61, p &lt; 0.05), 97 (86%) used full protective clothing (OR 0.22, CI 0.07-0.68, p &lt; 0.05). All seven blood samples tested positive for NS-1 Ag. Conclusion Presence of stagnant rain water inside and around houses acted as breeding grounds for aedes aegypti mosquitoes and was most probable cause of outbreak. Following our recommendations, health department initiated mosquito breeding sites control activities through insecticide residual spray and advocacy on use of protective measures against mosquito bites. Key words Outbreak, dengue, stagnant water, Bhara Kahu, Islamabad, 2019

scholarly journals Late detection of a shigellosis outbreak in a school in Madrid

2005 ◽  
Vol 10 (10) ◽  
pp. 7-8 ◽  
Author(s):  
J Jonsson ◽  
M C del Álvarez-Castillo ◽  
J C Sanz ◽  
R Ramiro ◽  
E Ballester ◽  
...  
Keyword(s):  
Gel Electrophoresis ◽  
Attack Rate ◽  
Pulsed Field Gel Electrophoresis ◽  
Shigella Sonnei ◽  
Control Measures ◽  
Epidemic Curve ◽  
First Case ◽  
Prolonged Duration ◽  
Late Detection ◽  
Identical Strain

Even though shigellosis in Spain is rare, an indigenous outbreak is occasionally detected. We describe an outbreak in a school in Madrid caused by person-to-person transmission of Shigella sonnei. After the detection of Shigella sonnei in a stool sample from a 3 year old girl, an investigation at her school was initiated. Questionnaires were distributed to the parents of 520 pupils attending the school. A case was defined as a school case if it was the first case in a child’s household, and as a household case if other members of the household had fallen ill first. We identified 88 cases (60 pupils and 28 of their family members). The attack rate (AR) was 12% in the school and 32% in the families. There was a significant association between higher AR and lower age. The outbreak lasted for two months. The length and the shape of the epidemic curve of the 60 cases in pupils suggests person-to-person transmission. Shigella sonnei isolated from 5 different cases were typed by pulsed field gel electrophoresis (PFGE) and was found to be an identical strain. The prolonged duration of the outbreak was probably due to delayed detection, and stopped as soon as control measures were introduced.

Clostridium difficile-Associated Diarrhea: Epidemiology, Risk Factors, and Infection Control

1997 ◽  
Vol 18 (09) ◽  
pp. 628-632 ◽  
Author(s):  
Kwan Kew Lai ◽  
Zita S. Melvin ◽  
Mary Jane Menard ◽  
Helen R. Kotilainen ◽  
Stephen Baker
Keyword(s):  
Risk Factors ◽  
Clostridium Difficile ◽  
Respiratory Tract ◽  
Infection Control ◽  
Attack Rate ◽  
Respiratory Tract Infections ◽  
Antibiotic Use ◽  
Control Measures ◽  
Infection Control Measures ◽  
Tract Infections

Abstract Objectives: To evaluate the effectiveness of specific infection control measures on the incidence of Clostridium difficile-associated diarrhea (CDAD) and to identify risk factors for its development. Setting: 370-bed, tertiary-care teaching hospital with approximately 12,000 to 15,000 admissions per year. Methods: Several infection control measures were implemented in 1991 and 1992, and the attack rates of CDAD were calculated quarterly. Antibiotic use for 1988 through 1993 was analyzed. A case-control study was conducted from January 1992 to December 1992 to identify risk factors for acquisition of CDAD. Results: From 1989 to 1992, the attack rate of CDAD increased from 0.49% to 2.25%. An increase in antibiotic use preceded the rise in the incidence of CDAD in 1991. Despite implementation of various infection control measures, the attack rate decreased to 1.32% in 1993, but did not return to baseline. Ninety-two cases and 78 controls (patients with diarrhea but with negative toxin assay) were studied. By univariate analysis, history of prior respiratory tract infections (odds ratio [OR], 3.6; 95% confidence interval [CI95], 1.2-10.4), the number of antibiotics, and the duration of exposure to second-generation cephalosporins (OR, 3.55; CI95, 1.47-9.41) and to ciprofloxacin (OR, 7.27; CI95, 1.13-166.0) were related significantly to the development of CDAD. By stepwise logistic regression analysis, only exposure to antibiotics and prior respiratory tract infections (P=.0001 and .0203, respectively) were found to be significant. Conclusion: Antibiotic pressure might have contributed to failure of infection control measures to reduce the incidence of CDAD to baseline.

MEASLES OUTBREAK IN A RURAL AREA OF A DEVELOPING COUNTRY: A CASE CONTROL STUDY

2018 ◽  
Vol 7 (4) ◽  
pp. 197-201
Author(s):  
Mir M Hassan Bullo ◽  
Mirza Amir Baig ◽  
Jawad Faisal Malik ◽  
Ejaz Ahmad Khan ◽  
Muazam Abbas Ranjha ◽  
...  
Keyword(s):  
Risk Factors ◽  
Vaccine Coverage ◽  
Significant Risk ◽  
Public Health Problem ◽  
Maculopapular Rash ◽  
Healthcare Facility ◽  
Control Measures ◽  
Major Public Health Problem ◽  
District Health ◽  
Active Case

Background: Measles is highly contagious vaccine preventable disease (VPD), and a major public health problem considered as leading cause of morbidity and mortality in developing countries like Pakistan. An outbreak of measles was reported in Sharifabad Islamabad on 15th of April 2017, and an investigation was launched to assess the magnitude of outbreak, evaluate risk factors and recommend control measures. Methods: A comprehensive house to house active case search along with vaccine coverage survey was conducted from April 19-22, 2017. A case was defined as "onset of maculopapular rash with fever in a resident of Sharifabad with at least one of the following signs/ symptoms, Coryza, Conjunctivitis, Cough, Otitis media or Pneumonia present in between 19 March to 22nd April 2017". Four age & sex matched controls were selected from the neighborhood. Data was collected through interview method using structured questionnaire and vaccination coverage was determined by using Epi survey form. Blood samples were sent for laboratory confirmation. Results: A total of eight cases were identified through active case finding while three were reported by local practitioner. Mean age of cases were 20 months (range 8-36 months). Severely affected age-group was 1-2 years with attack rate of 46%. Around two-third (64%) of cases and a few (16%) of controls were unvaccinated against measles. Contact with measles patient [OR 25.2, CI 3.9-160.1, P=0.00], unvaccinated children [OR 9.2 CI 2.12-40.4, P=0.000], social misconception regarding vaccination [OR 7.8 CI 1.42-42.6, P=0.00], and distance from healthcare facility [OR 5.7 CI 1.15-28.35, P=0.02] were significant risk factors. Vaccine efficacy was 90%. Conclusion: Main reasons of the outbreak were contact with the cases, and low vaccination status. We recommended comprehensive measles vaccination and community awareness sessions. On our recommendations district health authority Islamabad carried out mop up of whole area.

Knowledge, awareness and perceptions of diabetes mellitus among the Saudi population

2020 ◽  
Vol 9 (6) ◽  
pp. 413-422
Author(s):  
Muhammad H Mujammami ◽  
Abdulaziz A Alodhayani ◽  
Mohammad Ibrahim AlJabri ◽  
Ahmad Alhumaidi Alanazi ◽  
Sultan Sayyaf Alanazi ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Social Media ◽  
Risk Factor ◽  
Healthcare Workers ◽  
Health Workers ◽  
Saudi Population ◽  
Limited Data ◽  
High Prevalence ◽  
Associated Risk Factors

Background: High prevalence of undiagnosed cases of diabetes mellitus (DM) has increased over the last two decades, most patients with DM only become aware of their condition once they develop a complication. Limited data are available regarding the knowledge and awareness about DM and the associated risk factors, complications and management in Saudi society. Aim: This study aimed to assess knowledge of DM in general Saudi society and among Saudi healthcare workers. Results: Only 37.3% of the participants were aware of the current DM prevalence. Obesity was the most frequently identified risk factor for DM. Most comparisons indicated better awareness among health workers. Conclusion: A significant lack of knowledge about DM in Saudi society was identified. Social media and educational curriculum can improve knowledge and awareness of DM.

scholarly journals An innovative approach to improve the detection and treatment of risk factors in poor urban settings: a feasibility study in Argentina

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Poggio Rosana ◽  
Goodarz Danaei ◽  
Laura Gutierrez ◽  
Ana Cavallo ◽  
María Victoria Lopez ◽  
...  
Keyword(s):  
Public Health ◽  
Risk Factors ◽  
Primary Care ◽  
Community Health ◽  
Community Health Workers ◽  
Feasibility Study ◽  
Health Workers ◽  
Health Coverage ◽  
Cvd Risk Factors ◽  
Cvd Risk

Abstract Background The effective management of cardiovascular (CVD) prevention among the population with exclusive public health coverage in Argentina is low since less than 30% of the individuals with predicted 10-year CVD risk ≥10% attend a clinical visit for CVD risk factors control in the primary care clinics (PCCs). Methods We conducted a non-controlled feasibility study using a mixed methods approach to evaluate acceptability, adoption and fidelity of a multi-component intervention implemented in the public healthcare system. The eligibility criteria were having exclusive public health coverage, age ≥ 40 years, residence in the PCC’s catchment area and 10-year CVD risk ≥10%. The multi-component intervention addressed (1) system barriers through task shifting among the PCC’s staff, protected medical appointments slots and a new CVD form and (2) Provider barriers through training for primary care physicians and CHW and individual barriers through a home-based intervention delivered by community health workers (CHWs). Results A total of 185 participants were included in the study. Of the total number of eligible participants, 82.2% attended at least one clinical visit for risk factor control. Physicians intensified drug treatment in 77% of participants with BP ≥140/90 mmHg and 79.5% of participants with diabetes, increased the proportion of participants treated according to GCP from 21 to 32.6% in hypertensive participants, 7.4 to 33.3% in high CVD risk and 1.4 to 8.7% in very high CVD risk groups. Mean systolic and diastolic blood pressure were lower at the end of follow up (156.9 to 145.4 mmHg and 92.9 to 88.9 mmHg, respectively) and control of hypertension (BP < 140/90 mmHg) increased from 20.3 to 35.5%. Conclusion The proposed CHWs-led intervention was feasible and well accepted to improve the detection and treatment of risk factors in the poor population with exclusive public health coverage and with moderate or high CVD risk at the primary care setting in Argentina. Task sharing activities with CHWs did not only stimulate teamwork among PCC staff, but it also improved quality of care. This study showed that community health workers could have a more active role in the detection and clinical management of CVD risk factors in low-income communities.

scholarly journals Seroprevalence of Toxoplasma gondii and associated risk factors in domestic pigs raised from Cuba

2021 ◽  
Author(s):  
Julio César Castillo-Cuenca ◽  
Álvaro Martínez-Moreno ◽  
José Manuel Diaz-Cao ◽  
Angel Entrena-García ◽  
Jorge Fraga ◽  
...  
Keyword(s):  
Risk Factors ◽  
Toxoplasma Gondii ◽  
Meat Products ◽  
Control Measures ◽  
Health Concern ◽  
Enzyme Linked Immunosorbent Assay ◽  
Serum Samples ◽  
Cross Sectional ◽  
Weaning Pigs ◽  
Associated Risk Factors

AbstractA cross-sectional study was carried out to determine the seroprevalence of Toxoplasma gondii and associated risk factors in pigs in the largest pork-producing region in Cuba. Serum samples from 420 pigs, including 210 sows and 210 post-weaning pigs, were tested for antibodies against T. gondii using a commercial indirect enzyme-linked immunosorbent assay. Anti-T. gondii antibodies were detected in 56 animals (13.3%, 95% CI: 10.1–16.6). A generalized estimating equations model revealed that the risk factors associated with higher seropositivity in pigs were altitude (higher in farm’s location < 250 m above sea level (masl) versus ≥ 250 masl) and age (higher in sows compared to post-weaning pigs). The results indicated that this protozoan parasite is widely distributed on pig farms in the study area, which is a public health concern since the consumption of raw or undercooked pork meat products containing tissue cysts is considered one of the main routes of T. gondii transmission worldwide. Control measures should be implemented to reduce the risk of exposure to T. gondii in pigs in Cuba.

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