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1.
Multimedia | Recursos Multimedia | ID: multimedia-9411

RESUMEN

A Organização das Nações Unidas para a Alimentação e a Agricultura (FAO), em parceria com a Organização Pan-Americana da Saúde/Organização Mundial de Saúde (OPAS/OMS), Ministério da Saúde, por meio da Coordenação-Geral de Alimentação e Nutrição do Departamento de Promoção da Saúde e do Instituto Nacional do Câncer (INCA), e Ministério da Agricultura, Pecuária e Abastecimento (MAPA), promove o evento online de lançamento da agenda de trabalho do Ano Internacional das Frutas, Legumes e Verduras no Brasil. A live acontece na quinta-feira, 01/07, das 16h30 às 18h00 (horário de Brasília) e tem como objetivo proporcionar um amplo debate sobre o tema e mobilizar os gestores públicos e profissionais envolvidos com a temática, de forma a reconhecer os desafios e oportunidades locais para a ampliação do acesso e consumo de FLV considerando a estreita relação com melhores condições de saúde e nutrição da população.


Asunto(s)
Alimentos Integrales , Dieta Saludable/economía , Conducta Alimentaria , Estilo de Vida Saludable , Promoción de la Salud , Brasil , COVID-19 , Bebidas Gaseosas/normas , Guías Alimentarias , Alimentos Industrializados , Agenda de Prioridades en Salud , Enfermedades no Transmisibles/prevención & control , Política Nutricional , Seguridad Alimentaria
2.
Nutrients ; 12(6)2020 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-32599819

RESUMEN

Phenylketonuria and tyrosinemia type 1 are treated with dietary phenylalanine (Phe) restriction. Aspartame is a Phe-containing synthetic sweetener used in many products, including many 'regular' soft drinks. Its amount is (often) not declared; therefore, patients are advised not to consume aspartame-containing foods. This study aimed to determine the variation in aspartame concentrations and its Phe-containing degradation products in aspartame-containing soft drinks. For this, an LC-MS/MS method was developed for the analysis of aspartame, Phe, aspartylphenylalanine, and diketopiperazine in soft drinks. In total, 111 regularly used soft drinks from 10 European countries were analyzed. The method proved linear and had an inter-assay precision (CV%) below 5% for aspartame and higher CVs% of 4.4-49.6% for the degradation products, as many concentrations were at the limit of quantification. Aspartame and total Phe concentrations in the aspartame-containing soft drinks varied from 103 to 1790 µmol/L (30-527 mg/L) and from 119 to 2013 µmol/L (20-332 mg/L), respectively, and were highly variable among similar soft drinks bought in different countries. Since Phe concentrations between drinks and countries highly vary, we strongly advocate the declaration of the amount of aspartame on soft drink labels, as some drinks may be suitable for consumption by patients with Phe-restricted diets.


Asunto(s)
Aspartame/análisis , Bebidas Gaseosas/análisis , Fenilalanina/análisis , Aspartame/química , Bebidas Gaseosas/normas , Cromatografía Liquida/métodos , Dicetopiperazinas/análisis , Dicetopiperazinas/química , Dipéptidos/análisis , Dipéptidos/química , Europa (Continente) , Inocuidad de los Alimentos , Humanos , Límite de Detección , Fenilalanina/química , Fenilcetonurias , Reproducibilidad de los Resultados , Espectrometría de Masas en Tándem/métodos
3.
Prev Chronic Dis ; 16: E142, 2019 10 17.
Artículo en Inglés | MEDLINE | ID: mdl-31625869

RESUMEN

INTRODUCTION: Each year, millions of people purchase food at highway rest areas. Rest areas are potential sites for health promotion because they are operated by the public sector; they are frequently visited by professional truck drivers, who have a disproportionate burden of chronic disease; and they are easily accessible. To our knowledge, no research has systematically examined the healthfulness of food offerings at rest areas. The objective of this study was to determine the accessibility and healthfulness of food and beverages offered at highway rest areas in North Carolina using a mixed-methods audit and geospatial approach. METHODS: We conducted a cross-sectional audit of all rest areas offering foods and beverages in North Carolina (N = 30) in summer 2018. We used the Nutrition Environment Measures Survey-Vending (NEMS-V) to record the 1) type, price, and size of all foods and beverages and 2) healthfulness of items offered (based on NEMS-V categorization). Two researchers independently double coded NEMS-V data. We used geospatial analysis to examine proximity of rest areas to food stores. We analyzed data by using univariate and bivariate analysis. RESULTS: The mean number of vending machines per site was 8.0 (range, 2-12, standard deviation, 2.8). The healthfulness of offerings varied across sites. Most food items (88.1%; 2,922 of 3,315) and beverage items (63.7%; 1,567 of 2,459) were classified as least healthful. Cold beverage machines had a greater percentage of healthful items (38.2%; 778 of 2,036) than snack machines (11.4%; 374 of 3,270) (P < .001), mainly because of water and diet soda in beverage machines. CONCLUSION: Policy changes are needed to increase the number and presentation of healthful food options at highway rest areas. Policy changes could provide travelers with more healthful options conveniently located along their travel route.


Asunto(s)
Bebidas Gaseosas/estadística & datos numéricos , Comida Rápida/estadística & datos numéricos , Distribuidores Automáticos de Alimentos/estadística & datos numéricos , Valor Nutritivo , Bocadillos , Bebidas Gaseosas/normas , Estudios Transversales , Comida Rápida/normas , Humanos , North Carolina
4.
Nutrition ; 60: 70-73, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30529884

RESUMEN

OBJECTIVE: The Veterans Health Administration is the largest integrated health care system fully funded through the US government; however, compliance with government dietary recommendations within Veterans Affairs (VA) hospitals is not well known. The aim of this study was to determine which foods are available at VA hospitals and whether these foods comply with government recommendations. METHODS: Process verification for a Freedom of Information Act request was used to assess government-run inpatient and outpatient VA hospital facilities by accessing the location, quantity, and contents of vending machines. These foods and beverages were then quantified and compared with the US Department of Agriculture Dietary Guidelines for Americans 2015-2020 (eighth edition). RESULTS: Of the beverages supplied, 49% contained >55 g of sugar, supplying >10% of daily calories in added sugar in a single serving. Of all beverages, 50% contained >50 g of added sugar (range 17-77 g per bottle/can). The 65 available food items were comprised of 28% candy, 14% potato chips/puffed corn snacks, 11% pastries/frosted baked goods, 11% crackles/pretzels, and 8% nuts/trail mix, and the remainder consisted of jerky, pork rinds, gum, and popcorn. Nuts/trail mix and granola-items meeting nutritional guidelines-comprised five and three options in total, respectfully. CONCLUSIONS: All VA Hospitals contain vending machines providing a majority of soda, candy, and junk foods that directly conflict with healthy food choice recommendations from US governing health bodies. Few sources meeting US dietary guidelines are available in vending machines at these government-run facilities, which serve as poor examples for patients who are attempting to follow a healthy diet.


Asunto(s)
Bebidas Gaseosas/provisión & distribución , Abastecimiento de Alimentos/estadística & datos numéricos , Adhesión a Directriz/estadística & datos numéricos , Hospitales de Veteranos/estadística & datos numéricos , Bocadillos , Bebidas Gaseosas/normas , Abastecimiento de Alimentos/normas , Hospitales de Veteranos/normas , Humanos , Política Nutricional , Estados Unidos
5.
J Sch Health ; 87(7): 498-505, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28580674

RESUMEN

BACKGROUND: To improve school store food environments, the South Korean government implemented 2 policies restricting unhealthy food sales in school stores. A food-based policy enacted in 2007 restricts specific food sales (soft drinks); and a nutrient-based policy enacted in 2009 restricts energy-dense and nutrient-poor (EDNP) food sales. The purpose of the study was to assess how the 2 policies have changed the school store food environment. METHODS: Foods sold in school stores in Seoul, South Korea were observed before (2006, 15 stores) and after (2013, 12 stores) implementation of the school store policies. Food availability in school stores in 2006 and 2013 was compared and EDNP food availability in 2013 was examined. RESULTS: When controlling the total number of foods sold in school stores and school characteristics, the mean number of soft drinks sold in a school store in 2013 (0.3 items) was significantly lower than in 2006 (1.9 items, p = .032). Soft drinks were still available in 50% of school stores observed in 2013, with all school stores selling EDNP foods in 2013. CONCLUSIONS: South Korean policies have had a modest influence on availability of unhealthy school store foods. Alternative strategies to improve school store food environments are needed.


Asunto(s)
Bebidas Gaseosas/normas , Industria de Alimentos/legislación & jurisprudencia , Industria de Alimentos/normas , Servicios de Alimentación/legislación & jurisprudencia , Servicios de Alimentación/normas , Política Nutricional , Valor Nutritivo , Instituciones Académicas/estadística & datos numéricos , Humanos , Legislación Alimentaria , Seúl , Factores Socioeconómicos
7.
Nurs Stand ; 31(12): 30, 2016 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-27897744

RESUMEN

Your online story says nurses and NHS staff face a ban on sugary drinks at work.


Asunto(s)
Bebidas Gaseosas/normas , Atención de Enfermería/organización & administración , Medicina Estatal/organización & administración , Humanos , Reino Unido
8.
Prev Med ; 90: 107-13, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27370166

RESUMEN

Many states have enacted laws to improve school nutrition. We tested whether stronger state nutrition laws are associated with subsequently decreased obesity. We conducted a retrospective national multi-year panel data study (analyzed 2014-2016 at the Children's Hospital of Philadelphia). The predictors were 2010 laws regarding 9 nutrition categories from the Classification of Laws Associated with School Students, which grades the strength of state laws (none, weak, or strong). The outcome was weight status (healthy weight, overweight, or obese) in elementary, middle, and high school from the 2011/2012 National Survey of Children's Health. We tested the association between the strength of laws and weight using multinomial logistic regression. To further evaluate our main results, we conducted state-level longitudinal analyses testing the association between competitive food and beverage laws on the change in obesity from 2003-2011. In main analyses of 40,177 children ages 10-17years, we found strong state laws restricting the sale of competitive food and beverages in elementary school (OR: 0.68; 95% CI: 0.48, 0.96) and strong advertising laws across all grades (OR: 0.63; 95% CI: 0.46, 0.86) were associated with reduced odds of obesity. In longitudinal analyses, states with strong competitive food and beverage laws from 2003-2010 had small but significant decreases in obesity, compared to states with no laws. Although further research is needed to determine the causal effect of these laws, this study suggests that strong state laws limiting the sale and advertising of unhealthy foods and beverages in schools are associated with decreased obesity rates.


Asunto(s)
Servicios de Alimentación/legislación & jurisprudencia , Política Nutricional/legislación & jurisprudencia , Obesidad Infantil/prevención & control , Instituciones Académicas/legislación & jurisprudencia , Gobierno Estatal , Adolescente , Publicidad , Índice de Masa Corporal , Bebidas Gaseosas/normas , Niño , Femenino , Servicios de Alimentación/normas , Humanos , Masculino , Philadelphia , Estudios Retrospectivos
11.
Nutr Hosp ; 32(6): 2880-6, 2015 Dec 01.
Artículo en Español | MEDLINE | ID: mdl-26667747

RESUMEN

INTRODUCTION: soft drinks are becoming increasingly consumed by society. They are composed by a great variety of components, some of which can produce adverse effects if they are frequently consumed in high levels. OBJECTIVES: determine caffeine and quinine concentration to prove that those concentration levels are lower than the legal limits allowed and calculate the contribution to dietary intake to obtain the Estimated Daily Intake. METHODS: levels of caffeine and quinine of the main brands of soft drinks were analyzed using High-Performance Liquid Chromatography technique. RESULTS: concentrations were obtained for all brands, and the medium level was estimated. CONCLUSIONS: it has been observed that in any case the maximum concentration limits are exceeded and the contribution to dietary intake doesn't mean adverse reaction.


Introducción: las bebidas refrescantes son cada vez más consumidas por la sociedad. Están compuestas por una gran variedad de sustancias, de las cuales algunas, si se consumen en dosis altas y con elevada frecuencia, pueden provocar efectos negativos. Objetivos: determinar la concentración de cafeína y quinina para comprobar si sus niveles se encuentran por debajo de los máximos permitidos por la reglamentación técnico-sanitaria vigente y calcular la contribución a la ingesta dietética obteniendo la Ingesta Diaria Estimada. Método: se analizaron las concentraciones de cafeína y quinina en las principales marcas comerciales de refrescos, usando para ello la técnica de cromatografía líquida de alta resolución. Resultados: se obtuvieron concentraciones para todas las marcas analizadas, que permitieron estimar la media en cada una. Conclusiones: se ha observado que en ningún caso se superan las concentraciones máximas y que la contribución a la ingesta no genera aparición alguna de reacción adversa.


Asunto(s)
Cafeína/análisis , Bebidas Gaseosas/análisis , Quinina/análisis , Bebidas Gaseosas/normas , Cromatografía Líquida de Alta Presión , Dieta
12.
East Mediterr Health J ; 20(11): 738-44, 2014 Dec 17.
Artículo en Inglés | MEDLINE | ID: mdl-25601813

RESUMEN

High consumption of soft drinks has been associated with lower intakes of milk and calcium-rich foods and higher body mass index (BMI). This study aimed to explore the pattern of beverage intake among Kuwaiti high-school students. A questionnaire on knowledge, attitudes and practices concerning beverages and milk and dairy products intake was completed by 190 Kuwaiti students aged 16-18 years and BMI was calculated for 181 of them. Intake of sweetened carbonated beverages and to a lesser extent packaged fruit juices affected the sufficiency of milk and dairy products intake among the sample of high-school students in Kuwait. Although BMI was not related to milk and dairy insufficiency, more of the overweight and obese students displayed incorrect practices. Nutritional education of high-school students on the importance of milk and dairy products as well as the hazards of excess sweetened carbonated beverages and packaged juice is recommended to prevent the obesity epidemic prevailing in Kuwait.


Asunto(s)
Bebidas/clasificación , Calcio de la Dieta/normas , Productos Lácteos/estadística & datos numéricos , Sacarosa en la Dieta/normas , Conocimientos, Actitudes y Práctica en Salud , Adolescente , Animales , Bebidas/efectos adversos , Bebidas/normas , Bebidas/estadística & datos numéricos , Índice de Masa Corporal , Bebidas Gaseosas/efectos adversos , Bebidas Gaseosas/normas , Bebidas Gaseosas/estadística & datos numéricos , Productos Lácteos/normas , Encuestas sobre Dietas/estadística & datos numéricos , Sacarosa en la Dieta/efectos adversos , Femenino , Humanos , Kuwait , Masculino , Leche/normas , Leche/estadística & datos numéricos
15.
Artículo en Inglés | MEDLINE | ID: mdl-22725649

RESUMEN

A simple, quantitative and rapid method for total brominated vegetable oil (BVO) using ion chromatography (IC) with suppressed conductivity detection was developed and successfully applied to soft drinks with results expressed as inorganic bromide anion. The procedure involves extraction of BVO with diethyl ether and treatment with zinc dust in a solution of acetic acid, giving recoveries ranging between 92.5 and 98.5%. The calibration curves obtained were linear with correlation coefficients (r²) of 0.998, a coefficient of variation (CV) of less than 5% and limit of detection (LOD) and limit of quantification (LOQ) of 250 and 750 µg l⁻¹, respectively. The method was successfully applied to the determination of BVO in several commercial soft drinks which were found to contain BVO in the range 1.8-14.510 mg l⁻¹. The method has less sources of error compared to previously published methods.


Asunto(s)
Bebidas Gaseosas/análisis , Emulsionantes/análisis , Aditivos Alimentarios/análisis , Inspección de Alimentos/métodos , Aceites de Plantas/análisis , Bebidas/análisis , Bebidas/normas , Bebidas Gaseosas/normas , Cromatografía Líquida de Alta Presión , Cromatografía por Intercambio Iónico , Emulsionantes/química , Unión Europea , Aditivos Alimentarios/química , Contaminación de Alimentos , Alimentos en Conserva/análisis , Alimentos en Conserva/normas , Frutas/química , Halogenación , Kuwait , Límite de Detección , Aceites de Plantas/química , Reproducibilidad de los Resultados , Aceite de Sésamo/análisis , Aceite de Sésamo/química
16.
J Agric Food Chem ; 60(11): 2778-84, 2012 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-22356160

RESUMEN

¹H Nuclear magnetic resonance (NMR) spectroscopy (400 MHz) was used in the context of food surveillance to develop a reliable analytical tool to differentiate brands of cola beverages and to quantify selected constituents of the soft drinks. The preparation of the samples required only degassing and addition of 0.1% of TSP in D2O for locking and referencing followed by adjustment of pH to 4.5. The NMR spectra obtained can be considered as "fingerprints" and were analyzed by principal component analysis (PCA). Clusters from colas of the same brand were observed, and significant differences between premium and discount brands were found. The quantification of caffeine, acesulfame-K, aspartame, cyclamate, benzoate, hydroxymethylfurfural (HMF), sulfite ammonia caramel (E 150D), and vanillin was simultaneously possible using external calibration curves and applying TSP as internal standard. Limits of detection for caffeine, aspartame, acesulfame-K, and benzoate were 1.7, 3.5, 0.8, and 1.0 mg/L, respectively. Hence, NMR spectroscopy combined with chemometrics is an efficient tool for simultaneous identification of soft drinks and quantification of selected constituents.


Asunto(s)
Bebidas Gaseosas/análisis , Cola/química , Espectroscopía de Resonancia Magnética/métodos , Preparaciones de Plantas/química , Bebidas Gaseosas/normas , Control de Calidad
17.
Obes Rev ; 13(3): 258-74, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22070346

RESUMEN

Carbonated soft drinks and other beverages make up an increasing percentage of energy intake, and there are rising public health concerns about the links between consumption of sugar-sweetened beverages and weight gain, obesity, and other cardiometabolic problems. In response, the food and beverage industry claims to be reformulating products, reducing package or portion sizes and introducing healthier options. Comparative analysis on various changes and their potential effects on public health are needed. We conduct a case study using the two largest and most influential producers of sweetened beverages, The Coca-Cola Company and PepsiCo Inc., who together control 34% of the global soft drink market, examining their product portfolios globally and in three critical markets (the United States, Brazil and China) from 2000 to 2010. On a global basis, total revenues and energy per capita sold increased, yet the average energy density (kJ 100 mL(-1) ) sold declined slightly, suggesting a shift to lower-calorie products. In the United States, both total energy per capita and average energy density of beverages sold decreased, while the opposite was true in the developing markets of Brazil and China, with total per capita energy increasing greatly in China and, to a lesser extent, in Brazil.


Asunto(s)
Bebidas/efectos adversos , Bebidas/normas , Ingestión de Energía , Obesidad/prevención & control , Bebidas/estadística & datos numéricos , Bebidas Gaseosas/efectos adversos , Bebidas Gaseosas/normas , Bebidas Gaseosas/estadística & datos numéricos , Ingestión de Líquidos , Conducta de Ingestión de Líquido , Ingestión de Energía/fisiología , Preferencias Alimentarias , Abastecimiento de Alimentos , Humanos , Valor Nutritivo , Obesidad/etiología , Obesidad/metabolismo , Salud Pública
18.
Health Econ ; 20(9): 1012-24, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21322088

RESUMEN

Whereas National Health authorities recommend a decrease in the consumption of 'added' sugar, a reform on the sugar market will lead to a 36% decrease of the sugar price in the EU. Using French data on soft drinks purchases, this paper investigates the anticipated impact of this reform on the consumption of sugar-sweetened beverages. The reform of the EU sugar policy leads to a decrease in regular soft drink prices by 3% and varies across brands. To assess substitution within this food category, we use a random-coefficients logit model that takes into account a large number of differentiated products and heterogeneity in consumers' behavior. Results suggest that price changes would lead to an increase in market shares of regular products by 7.5% and to substitutions between brands to the benefit of products with the highest sugar content. On the whole, it would raise consumption of regular soft drinks by more than 1 litre per person per year and consumption of added sugar by 124 g per person per year, this increase being larger in households composed of overweight and obese individuals.


Asunto(s)
Bebidas Gaseosas/economía , Sacarosa en la Dieta/economía , Unión Europea , Política Nutricional , Obesidad/epidemiología , Bebidas Gaseosas/normas , Bebidas Gaseosas/provisión & distribución , Costos y Análisis de Costo , Dieta/economía , Dieta/normas , Sacarosa en la Dieta/normas , Sacarosa en la Dieta/provisión & distribución , Humanos , Mercadotecnía/economía , Modelos Económicos
19.
Electrophoresis ; 31(9): 1550-9, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20422633

RESUMEN

Conditions were established for the separation and analysis of bisphenol A, bisphenol F, and their diglycidyl ethers by micellar electrokinetic capillary chromatography (MECC). Good resolution was obtained for all compounds, although in order to achieve the separation of ortho-ortho, ortho-para, and para-para isomers of bisphenol F diglycidyl ether (BFDGE), BFDGE x 2H(2)O and BFDGE x 2HCl, it was necessary to use a 25 microm id fused silica capillary. To increase sensitivity, a field-amplified sample injection (FASI)-MECC method was developed using 10 mM SDS solution as injection matrix and a 75 microm id fused silica capillary. Instrumental quality parameters such as LODs (<55 microg/L with standards), linearity (r(2)>0.999), and run-to-run and day-to-day precisions (RSD values lower than 12.5%) were determined. Finally, the suitability of the FASI-MECC method for the analysis of bisphenol A, bisphenol F, and their diglycidyl ethers in canned soft drinks was evaluated. Quantitation was performed by matrix-matched calibration using a plastic-bottled isotonic drink as matrix. The results showed that FASI-MECC is an economic method for the screening and quantitation of these kinds of compounds in soft drink beverages, with no loss of reproducibility, and effective at concentrations lower than the specific migration level values established by the European Union.


Asunto(s)
Bebidas Gaseosas/análisis , Cromatografía Capilar Electrocinética Micelar/métodos , Compuestos Epoxi/análisis , Análisis de los Alimentos/métodos , Fenoles/análisis , Compuestos de Bencidrilo , Calibración , Bebidas Gaseosas/normas , Compuestos Epoxi/química , Embalaje de Alimentos , Fenoles/química , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
20.
Int J Food Microbiol ; 137(1): 61-6, 2010 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-19926155

RESUMEN

Ninety beverages of three types (sugar sodas, diet sodas and water) were obtained from 20 self-service and 10 personnel-dispensed soda fountains, analyzed for microbial contamination, and evaluated with respect to U.S. drinking water regulations. A follow-up study compared the concentration and composition of microbial populations in 27 beverages collected from 9 soda fountain machines in the morning as well as in the afternoon. Ice dispensed from these machines was also examined for microbial contamination. While none of the ice samples exceeded U.S. drinking water standards, coliform bacteria was detected in 48% of the beverages and 20% had a heterotrophic plate count greater than 500cfu/ml. Statistical analyses revealed no difference in levels of microbial contamination between beverage types or between those dispensed from self-service and personnel-dispensed soda fountains. More than 11% of the beverages analyzed contained Escherichia coli and over 17% contained Chryseobacterium meningosepticum. Other opportunistic pathogenic microorganisms isolated from the beverages included species of Klebsiella, Staphylococcus, Stenotrophomonas, Candida, and Serratia. Most of the identified bacteria showed resistance to one or more of the 11 antibiotics tested. These findings suggest that soda fountain machines may harbor persistent communities of potentially pathogenic microorganisms which may contribute to episodic gastric distress in the general population and could pose a more significant health risk to immunocompromised individuals. These findings have important public health implications and signal the need for regulations enforcing hygienic practices associated with these beverage dispensers.


Asunto(s)
Bebidas Gaseosas/microbiología , Enterobacteriaceae/aislamiento & purificación , Microbiología de Alimentos , Bebidas Gaseosas/efectos adversos , Bebidas Gaseosas/normas , Chryseobacterium/aislamiento & purificación , Recuento de Colonia Microbiana , Farmacorresistencia Bacteriana , Escherichia coli/aislamiento & purificación , Contaminación de Alimentos , Microbiología de Alimentos/normas , Humanos , Hielo/normas , Salud Pública/normas , Estados Unidos , Microbiología del Agua/normas
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