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A total of 77 samples 9 pig feed, 19 fish feed, 9 pig faeces, 20 fish mucus and 20 fish intestine from 10 tilapia-pig ponds and 10 non-integrated ponds were analysed. Salmonella spp. Weltevreden One pig faeces sample contained S. Typhimurium whereas feed samples were found free of Salmonella spp.. Weltevreden in both tilapia production systems indicates that this serovar may have a different ecology and increased survival in aquaculture environments in comparison with other Salmonella serovars.
Weltevreden in aquaculture environments are needed. Methods: Based on the data of incidence, mortality and healthcare cost of HBV-related diseases and other socio-economic data in Guangdong Province, we estimated deaths, disability-adjusted life-years DALYs and economic cost for the three HBV-related diseases—hepatitis B, liver cirrhosis and liver cancer—in Guangdong following the procedures developed for the global burden of disease study. Then disease burden and economic cost attributed to HBV infection was estimated.
The greatest loss of deaths and DALYs were from liver cancer. The 45—59 years age group had the greatest burden attributable to HBV infection. Conclusions: HBV infection is a great medical challenge as well as a significant economic burden to Guangdong Province. The results suggest that substantial health benefits could be gained by extending effective public health and clinical interventions to reduce HBV infection in Guangdong Province.
CO2 is consumed during the weathering of carbonates, whereas carbonates are precipitated rapidly in the oceans, which are pivotal to modulate atmospheric CO2, oceanic pH and climate. Calcium carbonate in limestone is one of the largest reservoirs of carbon at the Earth's surface, so calcium is an important element that links the lithosphere, hydrosphere, biosphere, and the atmosphere. Compared with silicate rocks, carbonate rocks have more rapid rates of physical and chemical erosions, so the carbonate weathering will respond more quickly to the climatic changes.
In the southeast of China , enormous of carbonate rocks are widely distributed. Due to the influence of the subtropical monsoon climate, the rocks experienced strong chemical weathering and pedogenic process, resulting in red weathering crust of carbonate rocks. This type of weathering crust is geochemistry-sensitive and ecology-vulnerable, which can provide important insights into the recycle of supergene geochemistry in the karst areas. In this study, we report calcium isotopic compositions of saprolites from a weathering profile developed on argillaceous carbonate rocks in northern Guangdong , South China.
Sr is an analogue for Ca due to its similar ionic size and charge; however, these two systems can differ in certain respects. The coupled study of Ca and Sr will be helpful to verify sources of Ca and the. Evaluation of the economic burden of leprosy among migrant and resident patients in Guangdong Province, China.
A lot of time and money was needed during the diagnosis and treatment process of leprosy, the delayed leprosy would also impair the labor capability of patients as well, and these put a heavy burden for the leprosy patients. The migrant leprosy patient is a special group and need more concern.
Our goal was to assess the economic burden of leprosy on migrant and resident patient populations in Guangdong province, China. We conducted a population-based cross-sectional survey from February to July of A self-designed questionnaire was administered to leprosy patients who: 1 had registered in Leprosy Management Information System in China LEPMIS by the end of February , 2 had received multiple drug treatment MDT drugs at a local leprosy control institution for three consecutive months or had had at least one physical check in the past half year, and 3 were willing to take part in the investigation and give informed written consent.
A total of participants completed the questionnaires, including males and 86 females. Migrants and residents accounted for Leprosy places a heavy economic burden on both migrant and resident leprosy patients and governmental policies and. Uranium isotope composition of a laterite profile during extreme weathering of basalt in Guangdong , South China. Rock weathering and soil formation in the critical zone are important for material cycle from the solid Earth to superficial system.
Laterite is a major type of soil in South China forming at hot-humid climate, which has strong effect on the global uranium cycle.
In order to understand the behavior of U isotopes during crust weathering, here we report uranium isotopic compositions of soil and base rock samples from a laterite profile originated from extreme weathering of basalt in Guangdong , South China. Our result of BCR-1 agrees with previous analyses e.
U contents of the laterite profile decrease from 1. Notably, U isotope compositions of soils show a small variation from Such small variation can be explained by a "rind effect" Wang et al. Therefore, our study indicates that U loss during basalt weathering at the hot-humid climate does not change U isotope composition of superficial water system. Full Text Available Background. Our study aimed to assess the burden of depression and evaluate factors associated with depression and status of HIV risk behaviors among female sex workers FSWs in Guangdong , China. We recruited FSWs from massage parlors, saunas, restaurants, hotels, hair salons, and streets in Guangdong , China , in Information on demographic characteristics, HIV testing history, and sexual behaviors was collected using a questionnaire.
A participant was defined as being depressed if she obtained 6 points or above using the item General Health Questionnaire. Among the participants, Overall, FSWs who did not use a condom during their last sex with the primary sex partner were less likely to be depressed 0. Future interventions should integrate mental health services in comprehensive interventions to prevent depression among Chinese FSWs.
Epidemiologic characterization of human papillomavirus infection in rural Chaozhou, eastern Guangdong Province of China. There were only a few reports and detailed data about epidemiological research of HPV infection in rural population of China. There was a peak incidence in age of years group, and a lower incidence in who lived in plain group compared with suburban, mountain and seashore group.
The combined prevalence of HPV types 16 and 18 accounted for However, type 52 plus 58 presented Live poultry market workers are susceptible to both avian and swine influenza viruses, Guangdong Province, China. Guangdong Province is recognized for dense populations of humans, pigs, poultry and pets.
In order to evaluate the threat of viral infection faced by those working with animals, a cross-sectional, sero-epidemiological study was conducted in Guangdong between December and January Individuals working with swine, at poultry farms, or live poultry markets LPM , and veterinarians, and controls not exposed to animals were enrolled in this study and 11 4 human, 3 swine, 3 avian, and 1 canine influenza A viruses were used in hemagglutination inhibition HI assays 7 strains and the cross-reactivity test 9 strains in which 5 strains were used in both tests.
Univariate analysis was performed to identify which variables were significantly associated with seropositivity. Poultry farm workers were at a higher risk of infection with avian influenza H7N9 and H9N2.

While partial confounding by cross-reactive antibodies against human viruses or vaccines cannot be ruled out, our data suggests that animal exposed people as are more likely to have antibodies against animal influenza viruses. In this study, we collected blood samples from father-son pairs of a Han population from Guangdong Province, Southern China , of which fathers were unrelated male individuals. A total of different haplotypes were observed among unrelated fathers, with the overall haplotype diversity HD 0.
Population relationships were analyzed by comparison with 19 other worldwide populations. With 27, allele transfers in father-son pairs, mutation events occurred, of which were one-step mutations and 6 were two-step mutations. Eleven father-son pairs were found to have mutations at two loci, while one pair at three loci. The estimated locus-specific mutation rates varied from 0 to 1. Full Text Available In Guangdong province, many hot springs were exploited and developed into popular places for tourist. In our study, indoor air quality was investigated in four hot spring hotels in Guangdong province, China.
As the result show, high concentrations of carbon dioxide might be attributed to poor ventilation; and the variations of indoor PM10, PM2. Alpha-pinene and toluene were the most common VOC species in the hot spring hotels other than monocyclic aromatic hydrocarbons like Benzene, Toluene, Ethylbenzene and Xylenes BTEX, which were at medium levels among the reported indoor pollutants.
High cancer risk of benzene in the newly decorated rooms should be seriously taken into consideration in the future. Negative correlations were found between indoor CO2 and all the other compounds, and VOCs were shown to be significantly correlated p Traditional Cantonese diet and nasopharyngeal carcinoma risk: a large-scale case-control study in Guangdong , China. Dietary habit is regarded as an important modifier of NPC risk in several endemic areas and may partially explain the geographic distribution of NPC incidence.
In China , rapid economic development during the past few decades has changed the predominant lifestyle and dietary habits of the Chinese considerably, requiring a reassessment of diet and its potential influence on NPC risk in this NPC-endemic area. Methods To evaluate the association between dietary factors and NPC risk in Guangdong , China , a large-scale, hospital-based case-control study was conducted.
In multivariate analyses, these associations remained significant.
Conclusions It can be inferred that previously established dietary risk factors in the Cantonese population are still stable and have contributed to the incidence of NPC. Molecular epidemiology of human immunodeficiency virus type 1 in Guangdong province of southern China. Of samples Thirteen 8. The transmission with drug-resistant variants is starting to emerge in this region.
The impact of women's education, workforce experience, and the One Child Policy on fertility in China : a census study in Guangdong , China. The impact of women's education on fertility is of interest to researchers, particularly in China. However, few studies have provided well-founded assessments of how women's education, workforce experience, and birth control policy jointly affect fertility in China.
This study, conducted in Guangdong Province, aimed to analyze how these three factors influenced the timing of births and affected women at different stages of their reproductive lives. We used census data for Guangdong Province , , and to make cross-sectional age-specific comparisons to examine the effects of women's education and workforce participation on fertility outcomes under China 's One Child Policy.
These results suggest that educational attainment and workforce experience have a substantial effect on women's fertility, and a tradeoff between them is unavoidable. China 's birth control policy adjustment should be considered in planning future services to accommodate anticipated increases in the birth rate. More attention should be directed to the causal mechanism women's preference and selection effects behind the factors analyzed in this study.
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The relationship between job satisfaction, work stress, work? Objective To investigate the relationship between job satisfaction, work stress, work? Methods From August to October , physicians completed questionnaires and scales with regard to their job satisfaction, work stress, work? Binary logistic regression and structural equation modelling SEM were used in data a Renewable energy markets in China : An analysis of renewable energy markets in Guangdong , Jiangxi, Jilin, and Yunnan provinces, with updated information from Beijing.
The People's Republic of China has undergone many changes over the past decade that have led to new growth and created opportunities for many industries, including the renewable energy industry. China has consistently had one of the fastest-growing economies in Asia. This report is a continuation of a market assessment done in , which analyzed six provinces Inner Mongolia, Gansu, Shandong, Qinghai, Xinjiang, and Zhejiang in China. The information contained in this report comes mainly from interviews conducted with central and local government officials, state and local power bureau officials, and various company executives.
The report provides valuable market information necessary for any company interested in entering China 's renewable energy market.
It also details the legal, competitive, sociocultural, technological, geographic, and economic environments of four provinces in China : Guangdong , Jiangxi, Jilin, and Yunnan. In addition, it outlines the major central government policies and contacts important to renewable energy development within China. Atmospheric toxic metals emission inventory and spatial characteristics from anthropogenic sources of Guangdong province, China. Cher, S. Atmospheric toxic metals TMs are part of particulate matters, and may create adverse effects on the environment and human health depending upon their bioavailability and toxicity.
Localized emission inventory is fundamental for parsing of toxic metals to identify key sources in order to formulate efficient toxic metals control strategies. With the use of the latest municipal level environment statistical data, this study developed a bottom-up emission inventory of five toxic metals Hg, As, Pb, Cd, Cr from anthropogenic activities in Guangdong province for the year of Major atmospheric toxic metals sources including combustion sources coal, oil, biomass, municipal solid waste and industrial process sources cement production, nonferrous metal smelting, iron and steel industry, battery and fluorescent lamp production were investigated.
Serum carotenoids and colorectal cancer risk: A case-control study in Guangdong , China. Previous epidemiological studies on the association between circulating carotenoids and the risk of colorectal cancer drew inconclusive conclusions. This study aimed to examine serum carotenoids in relation to colorectal cancer risk in a Chinese population.