Food and its preparation conditions in hotels in Accra, Ghana: A concern for food safety

Although a lot of work has been done on the safety of street foods in most  developing countries, not much has been done with regards to the hotel industry. A pilot study to investigate food and its preparation conditions in ten selected hotels in Accra, the capital of Ghana with respect to food safety was therefore initiated in 2005/2006. A total of 184 samples; 105 swabs of kitchen working surfaces, cutlery and plates; 29, 30, and 20 samples of food, water and fruit juice  respectively were taken for microbial analysis from ten highly patronized hotels between December 2005 and June 2006. Standard microbiological methods were used for isolation, enumeration, and identification of bacteria. Thirty Seven (37) of the swab samples showed the presence of coliforms while Escherichia coli was absent in all the 105 samples. The total count of aerobic bacteria was high in the swabs from the working surfaces and cutting boards (> 103 cfu/ml). All the food samples tested negative for Salmonella, Staphylococcus and E. coli. Coliforms and E. coli were not detected in any of the 30 water samples tested, Ten of the fruit juice samples tested positive for coliforms although E. coli was absent in all the 20  samples. Most of the swabs that registered the presence of coliforms were from  chopping boards, pastry and working tables suggesting that the method of cleaning these surfaces should be improved. The microbial quality of all the food samples tested was satisfactory with aerobic colony counts of less than 104 cfu/g and no pathogens detected in 25g of food sample, which is the standard for ready to eat foods. The water samples also met the  satisfactory criteria of no coliforms detected in 100mls of water. No pathogens were detected in the fruit juice samples, but with the exception of ginger juice, all were contaminated with coliforms which suggests that, stringent measures be applied in the preparation and handling of these juices. As a result of this study staff and management of these hotels are now  implementing Good Hygienic Practices (GHP) and Hazard Analysis and Critical Control Points (HACCP).Key words: Food, Coliforms, Salmonella, Staphylococcu

A tuberculin skin test survey among Ghanaian school children

Ghana has not conducted a national tuberculin survey or tuberculosis prevalence survey since the establishment of the National Tuberculosis Control Programme. The primary objective of this study was therefore to determine the prevalence of tuberculin skin sensitivity in Ghanaian school children aged 6-10 years in 8 out of 10 regions of Ghana between 2004 and 2006. Tuberculin survey was conducted in 179 primary schools from 21 districts in 8 regions. Schools were purposively selected so as to reflect the proportion of affluent private and free tuition public schools as well as the proportion of small and large schools. Of the 24,778 children registered for the survey, 23,600 (95.2%) were tested of which 21,861 (92.6%) were available for reading. The age distribution showed an increase in numbers of children towards older age: 11% of the children were 6 years and 25%, 10 years. Females were 52.5% and males 47.5%. The proportion of girls was higher in all age groups (range 51.4% to 54.0%, p < 0.001). BCG scar was visible in 89.3% of the children. The percentage of children with a BCG scar differed by district and by age. The percentage of children with a BCG scar decreased with increasing age in all districts, reflecting increasing BCG vaccination coverage in Ghana in the last ten years. The risk of tuberculosis infection was low in the northern savannah zones compared to the southern coastal zones. Using a cut-off of 15 mm, the prevalence of infection ranged from 0.0% to 5.4% and the Annual Risks of Tuberculosis Infection 0.0% to 0.6%. There was an increase in the proportion of infected children after the age of 7 years. Children attending low and middle-class schools had a higher risk of infection than children attending upper-class schools. Tuberculosis infection is still a public health problem in Ghana and to monitor the trend, the survey needs to be repeated at 5 years interva

The IDENTIFY study: the investigation and detection of urological neoplasia in patients referred with suspected urinary tract cancer - a multicentre observational study

Objective To evaluate the contemporary prevalence of urinary tract cancer (bladder cancer, upper tract urothelial cancer [UTUC] and renal cancer) in patients referred to secondary care with haematuria, adjusted for established patient risk markers and geographical variation. Patients and Methods This was an international multicentre prospective observational study. We included patients aged ≥16 years, referred to secondary care with suspected urinary tract cancer. Patients with a known or previous urological malignancy were excluded. We estimated the prevalence of bladder cancer, UTUC, renal cancer and prostate cancer; stratified by age, type of haematuria, sex, and smoking. We used a multivariable mixed-effects logistic regression to adjust cancer prevalence for age, type of haematuria, sex, smoking, hospitals, and countries. Results Of the 11 059 patients assessed for eligibility, 10 896 were included from 110 hospitals across 26 countries. The overall adjusted cancer prevalence (n = 2257) was 28.2% (95% confidence interval [CI] 22.3–34.1), bladder cancer (n = 1951) 24.7% (95% CI 19.1–30.2), UTUC (n = 128) 1.14% (95% CI 0.77–1.52), renal cancer (n = 107) 1.05% (95% CI 0.80–1.29), and prostate cancer (n = 124) 1.75% (95% CI 1.32–2.18). The odds ratios for patient risk markers in the model for all cancers were: age 1.04 (95% CI 1.03–1.05; P < 0.001), visible haematuria 3.47 (95% CI 2.90–4.15; P < 0.001), male sex 1.30 (95% CI 1.14–1.50; P < 0.001), and smoking 2.70 (95% CI 2.30–3.18; P < 0.001). Conclusions A better understanding of cancer prevalence across an international population is required to inform clinical guidelines. We are the first to report urinary tract cancer prevalence across an international population in patients referred to secondary care, adjusted for patient risk markers and geographical variation. Bladder cancer was the most prevalent disease. Visible haematuria was the strongest predictor for urinary tract cancer

Localization of Relevant Urban Micro-Consolidation Centers for Last-Mile Cargo Bike Delivery Based on Real Demand Data and City Characteristics

The use of cargo cycles for last-mile parcel distribution requires urban micro-consolidation centers (UMC). We develop an approach to localize suitable locations for UMCs with the consideration of three criteria: demand, land use, and type of road. The analysis considers metric levels (demand), linguistic levels (land use), and cardinal levels (type of road). The land-use category is divided into commercial, residential, mixed commercial and residential, and others. The type of road category is divided into bicycle road, pedestrian zone, oneway road, and traffic-calmed road. The approach is a hybrid multi-criteria analysis combining an Analytical Hierarchical Process (AHP) and PROMETHEE methods. We apply the approach to the city center of Stuttgart in Germany, using real demand data provided by a large logistics service provider. We compared different scenarios weighting the criteria differently with DART software. The different weight allocation results in different numbers of required UMCs and slightly different locations. This research was able to develop, implement, and successfully apply the proposed approach. In subsequent steps, stakeholders such as logistics companies and cities should be involved at all levels of this approach to validate the selected criteria and depict the “weight” of each criterion.info:eu-repo/semantics/publishe

Food And Its Preparation Conditions In Hotels In Accra, Ghana: A Concern For Food Safety

Although a lot of work has been done on the safety of street foods in most developing countries, not much has been done with regards to the hotel industry. A pilot study to investigate food and its preparation conditions in ten selected hotels in Accra, the capital of Ghana with respect to food safety was therefore initiated in 2005/2006. A total of 184 samples; 105 swabs of kitchen working surfaces, cutlery and plates; 29, 30, and 20 samples of food, water and fruit juice respectively were taken for microbial analysis from ten highly patronized hotels between December 2005 and June 2006. Standard microbiological methods were used for isolation, enumeration, and identification of bacteria. Thirty Seven (37) of the swab samples showed the presence of coliforms while Escherichia coli was absent in all the 105 samples. The total count of aerobic bacteria was high in the swabs from the working surfaces and cutting boards (> 103 cfu/ml). All the food samples tested negative for Salmonella, Staphylococcus and E. coli. Coliforms and E. coli were not detected in any of the 30 water samples tested, Ten of the fruit juice samples tested positive for coliforms although E. coli was absent in all the 20 samples. Most of the swabs that registered the presence of coliforms were from chopping boards, pastry and working tables suggesting that the method of cleaning these surfaces should be improved. The microbial quality of all the food samples tested was satisfactory with aerobic colony counts of less than 104 cfu/g and no pathogens detected in 25g of food sample, which is the standard for ready to eat foods. The water samples also met the satisfactory criteria of no coliforms detected in 100mls of water. No pathogens were detected in the fruit juice samples, but with the exception of ginger juice, all were contaminated with coliforms which suggests that, stringent measures be applied in the preparation and handling of these juices. As a result of this study staff and management of these hotels are now implementing Good Hygienic Practices (GHP) and Hazard Analysis and Critical Control Points (HACCP)

Localization of Relevant Inner Urban Micro Hubs for Last Mile Cargo Bike Delivery based on Real Demand Data and City Characteristics

info:eu-repo/semantics/publishe

Volume 7 No. 5 2007 FOOD AND ITS PREPARATION CONDITIONS IN HOTELS IN ACCRA, GHANA: A CONCERN FOR FOOD SAFETY

ABSTRACT Although a lot of work has been done on the safety of street foods in most developing countries, not much has been done with regards to the hotel industry. A pilot study to investigate food and its preparation conditions in ten selected hotels in Accra, the capital of Ghana with respect to food safety was therefore initiated in 2005/2006. A total of 184 samples; 105 swabs of kitchen working surfaces, cutlery and plates; 29, 30, and 20 samples of food, water and fruit juice respectively were taken for microbial analysis from ten highly patronized hotels between December 2005 and June 2006. Standard microbiological methods were used for isolation, enumeration, and identification of bacteria. Thirty Seven (37) of the swab samples showed the presence of coliforms while Escherichia coli was absent in all the 105 samples. The total count of aerobic bacteria was high in the swabs from the working surfaces and cutting boards (&gt; 10 3 cfu/ml). All the food samples tested negative for Salmonella, Staphylococcus and E. coli. Coliforms and E. coli were not detected in any of the 30 water samples tested, Ten of the fruit juice samples tested positive for coliforms although E. coli was absent in all the 20 samples. Most of the swabs that registered the presence of coliforms were from chopping boards, pastry and working tables suggesting that the method of cleaning these surfaces should be improved. The microbial quality of all the food samples tested was satisfactory with aerobic colony counts of less than 10 4 cfu/g and no pathogens detected in 25g of food sample, which is the standard for ready to eat foods. The water samples also met the satisfactory criteria of no coliforms detected in 100mls of water. No pathogens were detected in the fruit juice samples, but with the exception of ginger juice, all were contaminated with coliforms which suggests that, stringent measures be applied in the preparation and handling of these juices. As a result of this study staff and management of these hotels are now implementing Good Hygienic Practices (GHP) and Hazard Analysis and Critical Control Points (HACCP)