Abstract:
:In the last decade, a declining prevalence of HCV infection has been described in injecting drug users (IDUs) in different countries. This study is the first to assess temporal trends in drug-injecting patterns, HCV infection rates and viral genotype distribution in 770 Brazilian IDUs, recruited by two cross-sectional studies (1994-1997 and 1999-2001). A substantial decline in the prevalence of HCV infection was found over the years (75% in 1994 vs. 20.6% in 2001, P<0.001) that may be a consequence of the significant reduction in the overall frequencies of drug injection and needle-sharing, as well as the participation of IDUs in initiatives aimed at reducing drug-related harm. No trend was found in terms of viral genotype distribution. Despite the favourable scenario, preventive measures must be maintained, especially in vulnerable subgroups such as young or new injectors, where risky behaviours through direct and indirect sharing practices remain common.
journal_name
Epidemiol Infectjournal_title
Epidemiology and infectionauthors
Oliveira ML,Yoshida CF,Telles PR,Hacker MA,Oliveira SA,Miguel JC,do O KM,Bastos FIdoi
10.1017/S0950268808001970subject
Has Abstractpub_date
2009-07-01 00:00:00pages
970-9issue
7eissn
0950-2688issn
1469-4409pii
S0950268808001970journal_volume
137pub_type
杂志文章abstract::This analysis assessed the utility of the limiting antigen avidity assay (LAg). Samples of people who inject drugs (PWID) in Greece with documented duration of HIV-1 infection were tested by LAg. A LAg-normalized optical density (ODn) ⩽1·5 corresponds to a recency window period of 130 days. The proportion true recent ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268816002417
更新日期:2017-01-01 00:00:00
abstract::We investigated the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) carriage in a convenience sample of purposely selected populations of dogs, cats and horses in the Greater London area. Swabs from carriage sites were pooled, enriched and processed by standard bacteriological methods. The presence of...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S095026881000227X
更新日期:2011-07-01 00:00:00
abstract::Due to human error, drinking water supplied to a new housing estate in The Netherlands was contaminated with grey water. The cohort of 921 accidentally exposed households (area A) had a higher attack rate for diarrhoea (54.1%) than a non-exposed cohort of 1529 households from an adjacent area (B) (24%) (RR 2.3, 95% CI...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268806007497
更新日期:2007-07-01 00:00:00
abstract::The patterns of disease caused by five common viruses which infect the respiratory tract are described. The viruses were strains of rhinovirus types 2, 9, and 14, a strain of coronavirus type 229E and of respiratory syncytial virus. Volunteers were given nasal drops containing a low infectious dose of one of the virus...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268800056764
更新日期:1993-08-01 00:00:00
abstract::To determine the extent age, sex and co-infection affect morbidity in people infected with hepatitis C virus (HCV), we performed a population-based study linking HCV notifications in New South Wales, Australia with their hospital (July 2000 to June 2006), hepatitis B virus (HBV) and HIV notification, and death records...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S095026881000258X
更新日期:2011-08-01 00:00:00
abstract::A case-control study was undertaken in an acute district general hospital to identify risk factors for hospital-acquired bacteraemia caused by methicillin-resistant Staphylococcus aureus (MRSA). Cases of hospital-acquired MRSA bacteraemia were defined as consecutive patients from whom MRSA was isolated from a blood sa...
journal_title:Epidemiology and infection
pub_type: 杂志文章,随机对照试验
doi:10.1017/S0950268806006327
更新日期:2006-12-01 00:00:00
abstract::Serological tests are very frequently used in epidemiological surveys of leishmaniasis and other parasitoses. Their sensitivity and specificity are generally defined with respect to parasitism and disease, rather than infection. The reason is that known positives are those individuals most likely to yield parasites, o...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268800051074
更新日期:1993-06-01 00:00:00
abstract::Trimethoprim resistance was examined in faecal bacteria obtained from chickens, sheep, cattle and pigs. The incidence of trimethoprim resistance in porcine strains was 17% (157/922) and, whereas 15.8% (146/922) of these bacteria were highly resistant, only 4% (37/922) of the isolates possessed trimethoprim resistance ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268800061744
更新日期:1987-02-01 00:00:00
abstract::A 10-month longitudinal household study of pre-school children and their families was undertaken with monthly visits collecting epidemiological data and nasopharyngeal swabs in Hertfordshire, England from 2001 to 2002. Pneumococcal culture was with standard methods. In total, 121 families (489 individuals) took part. ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268805004012
更新日期:2005-10-01 00:00:00
abstract::Ruminants are considered the main reservoir for transmission of Coxiella burnetii (Cb) to humans. The implementation of effective control measures against Cb in ruminants requires knowledge about potential risk factors. The objectives of this study were (i) to describe the spatial distribution of Q fever-infected dair...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268814003926
更新日期:2015-11-01 00:00:00
abstract::Roughly half (54%) of the 910 young conscripts at a garrison in Finland were vaccinated with commercial influenza vaccines in autumn 1998. During the influenza outbreak in February 1999, 12 H3N2-subtype virus strains were isolated from vaccinated patients, and 11 such strains were isolated from unvaccinated patients. ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268802007410
更新日期:2002-10-01 00:00:00
abstract::The objective of this study was to compare the occurrence of Salmonella spp. found in the animal environment in pig herds with different Salmonella risks (61 herds with low seroprevalence, 81 herds with high seroprevalence) on a broad scale. The environmental samples were divided into two types: direct (n=1105) and in...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268811000239
更新日期:2012-01-01 00:00:00
abstract::Mycoplasma pneumoniae outbreaks cause increased use of macrolides and tetracyclines. We aimed to investigate whether drug use data, in addition to laboratory data, could improve understanding of the spread of M. pneumoniae epidemics. Number of users of Mycoplasma antibiotics (erythromycin, doxycycline, clarithromycin)...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268814002908
更新日期:2015-07-01 00:00:00
abstract::To assess areas at risk for poliovirus circulation in Ecuador, we first selected provinces at highest risk based on low immunization coverage with three doses of oral poliovirus vaccine, and a low number of reported cases of acute flaccid paralysis (AFP). Subsequently, we reviewed discharge data for the period 1996--2...
journal_title:Epidemiology and infection
pub_type: 杂志文章,多中心研究
doi:10.1017/s0950268804002626
更新日期:2004-10-01 00:00:00
abstract::Despite national guidance recommending testing and vaccination of household contacts of hepatitis B-infected pregnant women, provision and uptake of this is sub-optimal. The aim of this study was to evaluate the use of in-home dried blood spot (DBS) testing to increase testing and vaccination of household contacts of ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268815003325
更新日期:2016-07-01 00:00:00
abstract::We assessed prevalence of and risk factors for candidaemia following Clostridium difficile infection (CDI) using longitudinal population-based surveillance. Of 13 615 adults with CDI, 113 (0·8%) developed candidaemia in the 120 days following CDI. In a matched case-control analysis, severe CDI and CDI treatment with v...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268815003027
更新日期:2016-05-01 00:00:00
abstract::Current methods of control recruitment for case-control studies can be slow (a particular issue for outbreak investigations), resource-intensive and subject to a range of biases. Commercial market panels are a potential source of rapidly recruited controls. Our study evaluated food exposure data from these panel contr...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268819000219
更新日期:2019-01-01 00:00:00
abstract::The purpose of this study was to clarify the association between hand, foot, and mouth disease (HFMD) epidemics and meteorological conditions. We used HFMD surveillance data of all 47 prefectures in Japan from January 2000 to December 2015. Spectral analysis was performed using the maximum entropy method (MEM) for tem...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268817001820
更新日期:2017-10-01 00:00:00
abstract::Noroviruses (NoVs) are major causal agents of acute gastroenteritis in humans. NoV GII.4 is the predominant genotype globally. However, uncommon and minor types of NoVs are consistently detected and some have been shown to dominate over GII.4. Therefore, the prevalence of dominant and uncommon NoVs makes the identific...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268817001273
更新日期:2017-08-01 00:00:00
abstract::We report the co-circulation of a new lineage of measles virus (MV) and an Edmonston-like (Ed-like) genotype of MV in China during 1995-7. Sequence analysis of 25 strains was performed on a 282 nucleotides (nt) region of the nucleoprotein (N) gene, a 450-nt region of the haemagglutinin (H) gene and a 152-nt region of ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268898001666
更新日期:1998-12-01 00:00:00
abstract::A recent resurgence in serious infections due to Haemophilus influenzae type b (Hib) has been observed in the United Kingdom. More information on Hib transmission in the population is required in order to better understand the mechanism of this increase. The Public Health Laboratory Service (subsumed into the Health P...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268804002122
更新日期:2004-08-01 00:00:00
abstract::The status of hepatitis B virus (HBV) and hepatitis C virus (HCV) infection among non-European Union (non-EU) immigrants in North-East Italy was evaluated. Among the 1683 individuals tested the prevalence of HBsAg was 8.9% (150 subjects) and of HBV antibodies (anti-HBc with/without anti-HBs) was 38.9% (654 subjects). ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268898001034
更新日期:1998-08-01 00:00:00
abstract::In 2005, a serological study was carried out on horses in five ecologically contrasted zones of the Senegal River basin (Senegal) to assess West Nile virus (WNV) transmission and investigate underlying environmental risk factors. In each study zone, horses were randomly selected and blood samples taken. A land-cover m...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S095026881000035X
更新日期:2010-11-01 00:00:00
abstract::The number of band differences in DNA macrorestriction profiles required to distinguish unrelated strains from an index strain varies in an outbreak with the species and restriction enzyme used. In order to define this difference for epidemiological studies of Serratia marcescens, we produced DNA fingerprints from 57 ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268899004112
更新日期:2000-08-01 00:00:00
abstract::Surgical site infections (SSI) are a significant cause of post-surgical morbidity and mortality. The objectives of this study were to determine the prevalence of SSI and identify risk factors for infections following cesarean section (CS). A prospective study of SSI after CS was carried out from January 2014 to Decemb...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268819001675
更新日期:2019-10-10 00:00:00
abstract::We investigated which vaccination schedule gives best protection to the vaccinating population, in case there is a measles epidemic in an area with low vaccine coverage. We considered combinations of an early measles vaccination (none, at 6 months or at 9 months), a measles-mumps-rubella (MMR) vaccination around the f...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/s0950268801006409
更新日期:2002-02-01 00:00:00
abstract::Influenza vaccine effectiveness (VE) wanes over the course of a temperate climate winter season but little data are available from tropical countries with year-round influenza virus activity. In Singapore, a retrospective cohort study of adults vaccinated from 2013 to 2017 was conducted. Influenza vaccine failure was ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268820002952
更新日期:2020-12-02 00:00:00
abstract::The objective of this study was to describe the epidemiology of COVID-19 in Nigeria with a view of generating evidence to enhance planning and response strategies. A national surveillance dataset between 27 February and 6 June 2020 was retrospectively analysed, with confirmatory testing for COVID-19 done by real-time ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S095026882000206X
更新日期:2020-09-11 00:00:00
abstract::Common sources of shiga toxin-producing Escherichia coli (STEC) O157 infection have been identified by investigating outbreaks and by case-control studies of sporadic infections. We conducted an analysis to attribute STEC O157 infections ascertained in 1996 and 1999 by the Foodborne Diseases Active Surveillance Networ...
journal_title:Epidemiology and infection
pub_type: 杂志文章
doi:10.1017/S0950268813000915
更新日期:2014-02-01 00:00:00
abstract::Ignác Fülöp Semmelweis is famous for dramatically reducing puerperal mortality while he was an Assistant in Vienna's largest hospital, the Allgemeines Krankenhaus; he did this, mainly, by requiring medical personnel to disinfect their hands by washing in a chlorine solution. But Semmelweis was soon removed from his po...
journal_title:Epidemiology and infection
pub_type: 传,历史文章,杂志文章
doi:10.1017/S0950268817000875
更新日期:2017-07-01 00:00:00