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Microb Pathog ; 149: 104490, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32956791


Porcine circovirus type 2 (PCV2) causes infectious diseases in pigs leading to considerable economic losses in the pig industry. To prevent and control PCV2 infections, is important to understand the prevalence and geographical distribution of the virus. We performed the first systematic review and meta-analysis to estimate the prevalence of PCV2 in China. From PubMed, ScienceDirect, Chinese Web of Knowledge, Wanfang, and VIP Chinese Journal, we extracted 53 studies published in China between 2015 and 2019. There were 29,051 samples, 14,230 of which were positive for PCV2. The pooled prevalence of PCV2 was 46.0%, with the highest in Northeastern China (58.1%). The highest prevalence was 86.3% in Xinjiang province. Nursery pigs had the highest prevalence of PCV2 (50.9%), and the serological test detected the highest number of cases (58.5%). PCV2 prevalence was 50.1% in intensive farms and 37.5% in extensive farms. Our findings showed that PCV2 is common throughout China. Effective control measures are necessary to reduce PCV2 infections.

Infecções por Circoviridae , Circovirus , Doenças dos Suínos , Animais , China/epidemiologia , Infecções por Circoviridae/epidemiologia , Infecções por Circoviridae/veterinária , Prevalência , Suínos , Doenças dos Suínos/epidemiologia
Zhonghua Yi Shi Za Zhi ; 39(2): 87-9, 2009 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-19824369


There are many kinds of related names of ancient health-care drinks such as tea, tea soup, herb soup, soup, boiled water, thirsty water and cold decoction etc. Following textual research on each connotation of all kinds of names, they have the same aspects as well as different special contents. Among them, the tea soup is some kind of health-care and curative drink, mainly containing tea with other plant decoctions; not only referring to the drinking tea, but also the decoction drunk as tea. The 'tea soup can mostly reflect the original meaning of ancient health-care drinks, and also accord with the understanding of current health-care drinks, thus comprehensively and exactly summarize the content of ancient health-care drinks.

Bebidas/história , Fitoterapia/história , Preparações de Plantas/história , Terminologia como Assunto , História Antiga , Humanos , Preparações de Plantas/uso terapêutico , Chá/história , Água