Vended foods in Lagos, Nigeria: A potential reservoir for the spread of emerging strains of drug resistant bacteria

Background and Aims: Food is of paramount importance to the sustenance of human health, on that basis this study was initiated with a view to determining bacterial agents associated with the vended foods and to investigating antibacterial resistance of the isolates. Methods: Twelve food samples from vendors were randomly collected from ten locations within Lagos environs. The food samples were analyzed bacteriologically by standard methods. The isolates were identified and subjected to antimicrobial susceptibility testing using standard procedures. Results: The total plate counts of bacteria recorded was between 2.98 × 103 cfu/g in Jollofrice and 4.09 × 104 cfu/g in Salad. Seventy-six bacterial isolates made up of six genera;Escherichia coli, Salmonella Typhimurium, Alcaligenes spp., Klebsiella pneumoniae, Enterobacter spp., Serratia marcensens and Proteus spp. were identified. Most of the bacterial isolates were moderately sensitive to cotrimoxazole, nalidixic acid, amoxicillin and nitrofurantion except in S. Typhimurium with less than 50% susceptibility. Also over 60% of the pathogens isolated were inhibited by ceftazidime, cefpodoxime, and levofloxacin antibiotics and most strains of E. coli, S. Typhimurium and K. pneumoniae were resistant to ofloxacin, ciprofloxacin and ceftriazone. Conclusion: The study revealed gross contamination of various vended foods. It also indicated that vended foods are potential reservoir for the spread of emerging multiple drug resistant bacteria strains that pose threat to public health. There is a need for intensive surveillance to avoid possible outbreak of food- borne diseases resulting from consumption of contaminated vended foods.

A review on the consumption of vended fruits: microbial assessment, risk, and its control

Fruits are very beneficial to health and their consumption has been recommended in daily diets.However,when fresh fruits are harvested and processed into sliced ready-to-eat or vended forms for sale,hygienic procedures are neglected.Thus,they are easily infested by pathogens.In addition,uneducated vendors who sell these fruits often display or hawk them on the streets in contaminated containers,utensils,or dirty environments.This poses a great threat to the health of consumers.In the light of this realization,some microbial assessments have been carried out to ascertain the safety of these vended fruits,thus making it a necessity to exploit the outcomes of some of these microbial assessments on vended fruits in order to sensitize the consumers on the effect of their consumption and mitigate risk by improving their quality.This will assist to lower certain health concerns,an outbreak of diseases,and death.

城市轨道交通自动售票机硬币处理模式探讨

自动售票机硬币处理模式是自动售检票系统货币处理方式之一。通过对硬币处理模式硬件设计及功能介绍,分析广州地铁的模式应用情况,收集其他城市应用情况进行对比,从市场经济角度和实际应用情况出发,形成自动售票机硬币找零处理模式推荐方案。

The Role of Private Water Vending in Nigeian Peri-Urban Informal Settlements: Implication for Policy Makers

This paper presents a study of water vending in 3 informal settlements of Yola North in Adamawa State of Nigeria. These settlements represent the fast growing urban areas often dwelling in unplanned and unsecured tenure. Access to safe water supply has great influence on the health, economic productivity and quality of life of the people. But meeting this need is one of the major challenges facing the urban communities of Nigeria today. A field survey was conducted in the area with 100 observations of households in each of the three informal settlements. These settlements are Sabongari -University village, Vinikilang and Wuro Jabbe. The survey solicited for response concerning household water source, water per capita use and household size. Findings revealed that about 92% of respondent in Sabongari-University village, 66% in Vinikilang and 87% in Wuro Jabbe depend on vended water from borehole, hand dug well as well as surface water sources which are delivered by hand pushed trucks. Owing to the absence of piped water networks in the study area, households are forced to rely on available water sources which are precursor to water borne diseases. It is advocated that the public agencies should evolve special programs for regularizing informal settlements, meaning the legalization of land tenure, layout corrections and service upgrading if service is to meet the poor informal dwellers.

The Implication of Unreliable Urban Water Supply Service: The Case of Vendor Water Cost in Langata Sub County, Nairobi City, Kenya

Studies on urban water supply service improvements continue to draw interest across the world. The pressure on freshwater resources is increasing in every region in the face of an increasing demand and climate change dynamics. Langata sub County in Nairobi city, Kenya faces drought induced water shortage and households rely on water vending and bottled water purchases to augment the inadequate municipal water supplies. Little to our knowledge has been done to assess the cost implication of such a practice here. So the study used household survey method to collect monthly households’ water bills comprising;utility company, water tanker delivery and bottled water purchase from a randomly sampled 382 households spread within the five wards;Karen, South C, Mugumoini, Nairobi West and Nyayo Highrise. The gated communities identified are 57. Simple stochastic analysis of the data was done after data cleaning using MS Excel. It was found that the municipal water serves up to 91.15% of the total average household monthly water demand with a cost share of 27.91%. Water tanker delivery meets 8.61% of the household water demand with a cost share of 50.74%. The bottled water purchases serve 0.24% of a typical household water demand with a total cost share of 21.35%. The water supply deficit which is a mere 8.85% met by tanker deliveries and bottled water purchases has a total average cost share of 72.09%. The computed cost burden is 258%. This means that the households pay more than two and a half times extra above the utility bill per month. The study recommends a new water policy that will incorporate the role of water vendors operated on a cooperative model by the gated communities using standard guidelines.

The Dynamics of Domestic Water Vending in Enugu North L.G.A of Enugu State, Nigeria

The present investigation provides a case study of water vending in Enugu North Local Government Area, Enugu State of South Eastern Nigeria. Questionnaire copies were randomly distributed in the study area to 200 households. Data obtained from the field were analyzed using descriptive statistics and chi-square test. The analysis revealed that almost all the residents of Enugu North L.G.A. obtain their water from independent water vending systems which are operated by the private sector. Tanker truck, distributing and small retail water vendors all operate in the study area. There are an estimated number of 250 tanker truck drivers serving Enugu North L.G.A. Approximately 35 tanker trucks serve Hill- top/Udi siding ward, while there are a total of 52 retail vendors in Onuasata ward. Majority of the respondents are low income earners who spend within the ranges of NGN500 ($3.33) and NGN1500 ($10) a month on water on the average. 50.0 percent of these respondents opined that vended water was expensive. Of the respondents, 49.4 percent consumed 91 - 100 litres per capita per day, which is less than the 120 litres per capita per day recommended by the Federal Re- public of Nigeria’s National water supply and sanitation policy document of 2000. This deficit can be attributed to the cost of vended water. From the chi-square test, there is significant difference in the unit cost of water sold by vendors in the various wards in Enugu North L.G.A. In the absence of regular water provision through pipe-connections from the public utility, water vending should be supported but regulated. Meeting the water and sanitation target and optimizing water resources for the Millennium Development Goals (MDGs) by 2015 will require a dramatic scaling up of joint efforts by the state government and the people in ensuring that vendors provide safe water at a low cost.

The Impact of COVID-19 on Informal Employment and the Measures Taken by the Chinese Government:The Analysis of Street Vending Economy in Nanjing

To revitalize Chinese economic activities under the influence of the pandemic,the Chinese government adjusts the policies and attitudes about street vending.Taking Nanjing as a typical example of a city of street vending,the paper expounds in-depth on the positive impact of street vending on the economy after the pandemic.Meantime,it also describes the new management policies of street vending made by the Nanjing government to develop with a good trend.In addition,the paper directly reflects Nanjing people’s views on street vending and the resulting behavior through professional data.Finally,through the analysis of the advantages of street vending,it proves that the support from street vending in the Chinese economy is non-negligible after the pandemic.

The Comparative Study on the Management Mode of the Street Vending in Hong Kong and Singapore

Street vending,one of the crucial livelihoods of poorer sections,persists in all cities;meanwhile,it brings increased social costs,like traffic congestion and public health,which becomes one of the main challenges of urban public space management.Adopted by the desk-and-computer research method,this paper would analyze the management measures of hawkers in Hong Kong and Singapore from a comparative perspective.It,therefore,suggests that city administrations need to safeguard the rights of hawkers and adopt a more people-oriented management style,so as to pursue a more inclusive urban ecology.

How does Street Vending Economy Help Rural to Urban Migrants Integrate into Cities?

Street vending is a form of informal economy.The main participants of street vending economy consist of exploited workers,rural-urban migrants who are in low level of socioeconomic households,common workers,and some individual households.Most of the studies and articles have explored how to regulate the street vending economy and how to facilitate the relationship between vendors and city authorities,but the important constitute of street vending economies,rural migrants,has received little attention from scholars and there is little research about it.What role does street vending economy play in the lives of this segment of this population which itself faces a number of challenges in migrating and integrating into the city?We have found out that street vending functions as a platform which helps these people to better integrate into the cities.Through desktop research and case studies,this paper explores how street vending economy helps rural to urban migrants integrate into the city from four perspectives:identity integration,integrating in economic level,integrating in social level,and females'empowerment.

Estimates and burden of foodborne pathogens in RTE beverages in relation to vending practices

Objectives:Growing trend of street-vended food in underdeveloped countries offers low-cost food to many sections of population.Although it provides job opportunities to many urban dwellers,several health hazards are associated with this business.The present study investigates the burden of foodborne pathogens in Ready-To-Eat(RTE)beverages in relation to vending practices among street vendors of Rawalpindi City,Pakistan according to standardized methods and protocols.Materials and Methods:Six densely populated locations of Rawalpindi city were selected.Commonly consumed sugar cane juice(SCJ)and tamarind prune(dried plums)drink(TPD)(locally called as Imli Alu Bukhara sherbet)from five vendors from each location were chosen in summer season where the temperature reaches above 40℃.Mean and the standard deviation were obtained by univariate and bivariate analyses.Association between the study variables was assessed through cross-tabulations,chi-square,and correlation tests.Results:All the samples were found unsatisfactory in comparison to guidelines of aerobic plate count.Total coliform was observed in 86.7 per cent of SCJ and 70.0 per cent of TPD samples.Fourteen samples of SCJ exceeded the limit of>1100 MPN/ml value,whereas samples of TPD exceeded this limit for Escherichia coli.All of SCJ and 93.3 per cent of TPD samples depicted the presence of Salmonella aureus.Salmonella spp.were found significantly high in 73.3 per cent samples of SCJ and 23.3 per cent samples of TPD.Conclusions:The incidence of high bioloads attributes towards a potential reservoir of foodborne pathogens due to unhygienic vending practices.