Institution
Chinese Center for Disease Control and Prevention
Government•Beijing, China•
About: Chinese Center for Disease Control and Prevention is a government organization based out in Beijing, China. It is known for research contribution in the topics: Population & Acquired immunodeficiency syndrome (AIDS). The organization has 16037 authors who have published 15098 publications receiving 423452 citations. The organization is also known as: China CDC & CCDC.
Topics: Population, Acquired immunodeficiency syndrome (AIDS), Virus, Vaccination, Men who have sex with men
Papers published on a yearly basis
Papers
More filters
••
TL;DR: This work discovered a previously unidentified segmented RNA virus of ticks that, uniquely, contained two segments derived from an unsegmented flavivirus, as well as two highly divergent segments of unknown origin.
Abstract: Although segmented and unsegmented RNA viruses are commonplace, the evolutionary links between these two very different forms of genome organization are unclear. We report the discovery and characterization of a tick-borne virus—Jingmen tick virus (JMTV)—that reveals an unexpected connection between segmented and unsegmented RNA viruses. The JMTV genome comprises four segments, two of which are related to the nonstructural protein genes of the genus Flavivirus (family Flaviviridae), whereas the remaining segments are unique to this virus, have no known homologs, and contain a number of features indicative of structural protein genes. Remarkably, homology searching revealed that sequences related to JMTV were present in the cDNA library from Toxocara canis (dog roundworm; Nematoda), and that shared strong sequence and structural resemblances. Epidemiological studies showed that JMTV is distributed in tick populations across China, especially Rhipicephalus and Haemaphysalis spp., and experiences frequent host-switching and genomic reassortment. To our knowledge, JMTV is the first example of a segmented RNA virus with a genome derived in part from unsegmented viral ancestors.
149 citations
••
Mahidol University1, Wellcome Trust Sanger Institute2, Chinese Center for Disease Control and Prevention3, National Institutes of Health4, Hokkaido University5, Queensland Health6, Royal Tropical Institute7, University of Oxford8, University of Bath9, Imperial College London10, University of Cambridge11
TL;DR: The new MLST scheme allows the characterization and species assignment of isolates of the seven major pathogenic species associated with leptospirosis and demonstrates the utility of MLST in making associations between human disease and specific maintenance hosts.
Abstract: Background: The available Leptospira multilocus sequence typing (MLST) scheme supported by a MLST website is limited to L. interrogans and L. kirschneri. Our aim was to broaden the utility of this scheme to incorporate a total of seven pathogenic species. Methodology and Findings: We modified the existing scheme by replacing one of the seven MLST loci (fadD was changed to caiB), as the former gene did not appear to be present in some pathogenic species. Comparison of the original and modified schemes using data for L. interrogans and L. kirschneri demonstrated that the discriminatory power of the two schemes was not significantly different. The modified scheme was used to further characterize 325 isolates (L. alexanderi [n=5], L. borgpetersenii [n=34], L. interrogans [n=222], L. kirschneri [n=29], L. noguchii [n=9], L. santarosai [n=10], and L. weilii [n=16]). Phylogenetic analysis using concatenated sequences of the 7 loci demonstrated that each species corresponded to a discrete clade, and that no strains were misclassified at the species level. Comparison between genotype and serovar was possible for 254 isolates. Of the 31 sequence types (STs) represented by at least two isolates, 18 STs included isolates assigned to two or three different serovars. Conversely, 14 serovars were identified that contained between 2 to 10 different STs. New observations were made on the global phylogeography of Leptospira spp., and the utility of MLST in making associations between human disease and specific maintenance hosts was demonstrated. Conclusion: The new MLST scheme, supported by an updated MLST website, allows the characterization and species assignment of isolates of the seven major pathogenic species associated with leptospirosis.
149 citations
••
TL;DR: Nineteen compounds of 76 drugs were found in raw and treated slaughterhouse wastewater from four main slaughterhouses in Beijing and Illicit drugs for animal feeding such as clenbuterol and diazepam were commonly detected in slaughterhouses.
149 citations
••
TL;DR: It is suggested that never smoking lung cancer cases have differing sputum microbiota than controls, and bacteria found in sputums may be influenced by environmental exposures associated with the type of coal burned in the home.
Abstract: Bacteria influence site-specific disease etiology and the host's ability to metabolize xenobiotics, such as polycyclic aromatic hydrocarbons (PAHs). Lung cancer in Xuanwei, China has been attributed to PAH-rich household air pollution from burning coal. This study seeks to explore the role of lung microbiota in lung cancer among never smoking Xuanwei women and how coal burning may influence these associations. DNA from sputum and buccal samples of never smoking lung cancer cases (n=8, in duplicate) and controls (n=8, in duplicate) in two Xuanwei villages was extracted using a multi-step enzymatic and physical lysis, followed by a standardized clean-up. V1-V2 regions of 16S rRNA genes were PCR-amplified. Purified amplicons were sequenced by 454 FLX Titanium pyrosequencing and high-quality sequences were evaluated for diversity and taxonomic membership. Bacterial diversity among cases and controls was similar in buccal samples (P=0.46), but significantly different in sputum samples (P=0.038). In sputum, Granulicatella (6.1 vs. 2.0%; P=0.0016), Abiotrophia (1.5 vs. 0.085%; P=0.0036), and Streptococcus (40.1 vs. 19.8%; P=0.0142) were enriched in cases compared with controls. Sputum samples had on average 488.25 species-level OTUs in the flora of cases who used smoky coal (PAH-rich) compared with 352.5 OTUs among cases who used smokeless coal (PAH-poor; P=0.047). These differences were explained by the Bacilli species (Streptococcus infantis and Streptococcus anginosus). Our small study suggests that never smoking lung cancer cases have differing sputum microbiota than controls. Further, bacteria found in sputum may be influenced by environmental exposures associated with the type of coal burned in the home.
149 citations
••
TL;DR: Antiretroviral therapy for HIV-positive individuals in serodiscordant couples reduced HIV transmission across China, which suggests that the treatment-as-prevention approach is a feasible public health prevention strategy on a national scale in a developing country context.
149 citations
Authors
Showing all 16076 results
Name | H-index | Papers | Citations |
---|---|---|---|
Richard Peto | 183 | 683 | 231434 |
Barry M. Popkin | 157 | 751 | 90453 |
Jian Yang | 142 | 1818 | 111166 |
Edward C. Holmes | 138 | 824 | 85748 |
Jian Li | 133 | 2863 | 87131 |
Shaobin Wang | 126 | 872 | 52463 |
Elaine Holmes | 119 | 560 | 58975 |
Jian Liu | 117 | 2090 | 73156 |
Sherif R. Zaki | 107 | 417 | 40081 |
Jun Yang | 107 | 2090 | 55257 |
Nan Lin | 105 | 687 | 54545 |
Li Chen | 105 | 1732 | 55996 |
Ming Li | 103 | 1669 | 62672 |
George F. Gao | 102 | 793 | 82219 |
Tao Li | 102 | 2483 | 60947 |