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1.
Liver Int ; 43(3): 558-568, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36129625

RESUMO

BACKGROUND AND AIMS: In 2015, the country of Georgia launched an elimination program aiming to reduce the prevalence of Hepatitis C virus (HCV) infection by 90% from 5.4% prevalence (~150 000 people). During the first 2.5 years of the program, 770 832 people were screened, 48 575 were diagnosed with active HCV infection, and 41 483 patients were treated with direct-acting antiviral (DAA)-based regimens, with a >95% cure rate. METHODS: We modelled the incremental cost-effectiveness ratio (ICER) of HCV screening, diagnosis and treatment between April 2015 and November 2017 compared to no treatment, in terms of cost per quality-adjusted life year (QALY) gained in 2017 US dollars, with a 3% discount rate over 25 years. We compared the ICER to willingness-to-pay (WTP) thresholds of US$4357 (GDP) and US$871 (opportunity cost) per QALY gained. RESULTS: The average cost of screening, HCV viremia testing, and treatment per patient treated was $386 to the provider, $225 to the patient and $1042 for generic DAAs. At 3% discount, 0.57 QALYs were gained per patient treated. The ICER from the perspective of the provider including generic DAAs was $2285 per QALY gained, which is cost-effective at the $4357 WTP threshold, while if patient costs are included, it is just above the threshold at $4398/QALY. All other scenarios examined in sensitivity analyses remain cost-effective except for assuming a shorter time horizon to the end of 2025 or including the list price DAA cost. Reducing or excluding DAA costs reduced the ICER below the opportunity-cost WTP threshold. CONCLUSIONS: The Georgian HCV elimination program provides valuable evidence that national programs for scaling up HCV screening and treatment for achieving HCV elimination can be cost-effective.


Assuntos
Hepatite C Crônica , Hepatite C , Humanos , Antivirais/uso terapêutico , Análise Custo-Benefício , Hepacivirus , Georgia , Hepatite C Crônica/tratamento farmacológico , Hepatite C/tratamento farmacológico
2.
Public Health ; 195: 42-50, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34051674

RESUMO

OBJECTIVES: There is a dearth of research on hepatitis C virus (HCV) treatment uptake among people who inject drugs (PWIDs) and receive methadone substitution treatment (MST) in Eastern Europe and Central Asia countries. This study contributed to addressing that gap. We examined and identified factors that may affect HCV treatment uptake among PWID who received MST in the Republic of Georgia. STUDY DESIGN: The design of the study is retrospective cohort study. METHODS: We conducted HCV care cascade analysis by matching the data from the web-based national hepatitis C program registry (ELIM C) and the MST treatment database between January 1, 2015, and December 31, 2018. Using the World Health Organization's (WHO) Consensus HCV cascade of care (CoC) global instrument, we assessed the progress made toward the country's 2020 and WHO's 2030 hepatitis C elimination targets for the subpopulation of MST patients. RESULTS: Overall, 10,498 individuals have been dispensed methadone during the study period. A total of 6828 MST beneficiaries had HCV screening, of whom 5843 (85.6%) tested positive; 5476 (93.7%) were tested for HCV viremia, and 5275 (96.3%) were confirmed with chronic HCV infection. More than 75% (n = 4000) of HCV-infected MST patients initiated HCV treatment, and 3772 (94.3%) completed the treatment. Of those eligible for sustained virologic response assessment, 71.0% (2641/3715) were evaluated, and the reported cure rate was 96.1% (2537). The study found the odds of patients starting HCV treatment differed by the type of facility they were screened at and whether they were registered as PWID at the screening sites. The patients screened at centers with integrated HCV treatment services had higher treatment uptake rates than those screened at other centers. CONCLUSIONS: As the cumulative HCV treatment uptake and cure rates among MST patients with HCV infection are high (75.8% and 96.1%, respectively), the MST patients might become the first microelimination target population in which hepatitis C elimination will be achieved in Georgia. The study found the type of screening facility and whether MST patients registered themselves as PWID or not had significant effects on MST patients starting HCV treatment. At the same time, the study did not find gender and age to be significant predictors of MST patients starting HCV treatment. MST patients used different types of health facilities to get screened for HIV. Many of them did not register themselves as PWID when screened for HIV. The existence of only a few harm reduction sites with integrated HCV treatment services, a high level of stigma, and the criminalization of drug use might have incentivized MST patients to self-navigate across the HCV care continuum with the rest of the population. The implementation of focused, harm reduction, integrated HCV treatment with good peer and professional adherence support at treatment sites could help reach the hepatitis C elimination goals among MST patients.


Assuntos
Hepatite C , Abuso de Substâncias por Via Intravenosa , Antivirais/uso terapêutico , Georgia , República da Geórgia/epidemiologia , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Humanos , Metadona/uso terapêutico , Estudos Retrospectivos , Abuso de Substâncias por Via Intravenosa/epidemiologia , Organização Mundial da Saúde
3.
Clin Infect Dis ; 71(5): 1263-1268, 2020 08 22.
Artigo em Inglês | MEDLINE | ID: mdl-31563938

RESUMO

BACKGROUND: In April 2015, in collaboration with the US Centers for Disease Control and Prevention and Gilead Sciences, the country of Georgia embarked on the world's first hepatitis C elimination program. We aimed to assess progress toward elimination targets 3 years after the start of the elimination program. METHODS: We constructed a hepatitis C virus (HCV) care cascade for adults in Georgia, based on the estimated 150 000 persons aged ≥18 years with active HCV infection. All patients who were screened or entered the treatment program during April 2015-March 2018 were included in the analysis. Data on the number of persons screened for HCV were extracted from the national HCV screening database. For the treatment component, we utilized data from the Georgia National HCV treatment program database. Available treatment options included sofosbuvir and ledipasvir/sofosbuvir-based regimens. RESULTS: Since April 2015, a cumulative 974 817 adults were screened for HCV antibodies; 86 624 persons tested positive, of whom 61 925 underwent HCV confirmatory testing. Among the estimated 150 000 adults living with chronic hepatitis C in Georgia, 52 856 (35.1%) were diagnosed, 45 334 (30.2%) initiated treatment with direct-acting antivirals, and 29 090 (19.4%) achieved a sustained virologic response (SVR). Overall, 37 256 persons were eligible for SVR assessment; of these, only 29 620 (79.5%) returned for evaluation. The SVR rate was 98.2% (29 090/29 620) in the per-protocol analysis and 78.1% (29 090/37 256) in the intent-to-treat analysis. CONCLUSIONS: Georgia has made substantial progress in the path toward eliminating hepatitis C. Scaling up of testing and diagnosis, along with effective linkage to treatment services, is needed to achieve the goal of elimination.


Assuntos
Hepatite C Crônica , Hepatite C , Adolescente , Adulto , Antivirais/uso terapêutico , Georgia/epidemiologia , República da Geórgia/epidemiologia , Hepacivirus/genética , Hepatite C/diagnóstico , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Humanos , Sofosbuvir/uso terapêutico , Resposta Viral Sustentada
4.
Transfusion ; 60(6): 1243-1252, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32542715

RESUMO

BACKGROUND: In April 2015, the government of Georgia (country) initiated the world's first national hepatitis C elimination program. An analysis of blood donor infectious screening data was conducted to inform a strategic plan to advance blood transfusion safety in Georgia. STUDY DESIGN AND METHODS: Descriptive analysis of blood donation records (2015-2017) was performed to elucidate differences in demographics, donor type, remuneration status, and seroprevalence for infectious markers (hepatitis C virus antibody [anti-HCV], human immunodeficiency virus [HIV], hepatitis B virus surface antigen [HBsAg], and Treponema pallidum). For regression analysis, final models included all variables associated with the outcome in bivariate analysis (chi-square) with a p value of less than 0.05. RESULTS: During 2015 to 2017, there were 251,428 donations in Georgia, representing 112,093 unique donors; 68.5% were from male donors, and 51.2% of donors were paid or replacement (friends or family of intended recipient). The overall seroprevalence significantly declined from 2015 to 2017 for anti-HCV (2.3%-1.4%), HBsAg (1.5%-1.1%), and T. pallidum (1.1%-0.7%) [p < 0.0001]; the decline was not significant for HIV (0.2%-0.1%). Only 41.0% of anti-HCV seropositive donors underwent additional testing to confirm viremia. Infectious marker seroprevalence varied by age, sex, and geography. In multivariable analysis, first-time and paid donor status were associated with seropositivity for all four infectious markers. CONCLUSION: A decline during the study period in infectious markers suggests improvement in blood safety in Georgia. Areas that need further improvement are donor recruitment, standardization of screening and diagnostic follow-up, quality assurance, and posttransfusion surveillance.


Assuntos
Segurança do Sangue , Transfusão de Sangue , Hepacivirus , Anticorpos Anti-Hepatite C/sangue , Hepatite C/sangue , Adolescente , Adulto , Biomarcadores/sangue , Seleção do Doador , Feminino , República da Geórgia/epidemiologia , Antígenos de Superfície da Hepatite B/sangue , Hepatite C/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Sífilis/sangue , Sífilis/epidemiologia , Treponema pallidum
5.
Prev Med ; 138: 106153, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32473265

RESUMO

The country of Georgia initiated an ambitious national hepatitis C elimination program. To facilitate elimination, a national hospital hepatitis C screening program was launched in November 2016, offering all inpatients screening for HCV infection. This analysis assesses the effectiveness of the first year of the screening program to identify HCV-infected persons and link them to care. Data from Georgia's electronic Health Management Information System and ELIMINATION-C treatment database were analyzed for patients aged ≥18 years hospitalized from November 1, 2016 to October 31, 2017. We described patient characteristics and screening results and compared linked-to-care patients to those not linked to care, defined as having a test for viremia following an HCV antibody (anti-HCV) positive hospital screening. Of 291,975 adult inpatients, 252,848 (86.6%) were screened. Of them, 4.9% tested positive, with a high of 17.4% among males aged 40-49. Overall, 19.8% of anti-HCV+ patients were linked to care, which differed by sex (20.6% for males vs. 18.4% for females; p = .019), age (23.9% for age 50-59 years vs. 10.7% for age ≥ 70 years; p < .0001), and length of hospitalization (21.8% among patients hospitalized for 1 day vs. 16.1% for those hospitalized 11+ days; p = .023). Redundant screening is a challenge; 15.6% of patients were screened multiple times and 27.6% of anti-HCV+ patients had a prior viremia test. This evaluation demonstrates that hospital-based screening programs can identify large numbers of anti-HCV+ persons, supporting hepatitis C elimination. However, low linkage-to-care rates underscore the need for screening programs to be coupled with effective linkage strategies.


Assuntos
Hepatite C , Pacientes Internados , Adolescente , Adulto , Idoso , Feminino , Georgia , República da Geórgia , Hepatite C/diagnóstico , Hospitais , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade
6.
MMWR Morb Mortal Wkly Rep ; 68(29): 637-641, 2019 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-31344021

RESUMO

In April 2015, the country of Georgia, with a high prevalence of hepatitis C virus (HCV) infection (5.4% of the adult population, approximately 150,000 persons), embarked on the world's first national elimination program (1,2). Nearly 40% of these infections are attributed to injection drug use, and an estimated 2% of the adult population currently inject drugs, among the highest prevalence of injection drug use in the world (3,4). Since 2006, needle and syringe programs (NSPs) have been offering HCV antibody testing to persons who inject drugs and, since 2015, referring clients with positive test results to the national treatment program. This report summarizes the results of these efforts. Following implementation of the elimination program, the number of HCV antibody tests conducted at NSPs increased from an average of 3,638 per year during 2006-2014 to an average of 21,551 during 2015-2018. In 2017, to enable tracking of clinical outcomes among persons who inject drugs, NSPs began encouraging clients to voluntarily provide their national identification number (NIN), which all citizens must use to access health care treatment services. During 2017-2018, a total of 2,780 NSP clients with positive test results for HCV antibody were identified in the treatment database by their NIN. Of 494 who completed treatment and were tested for HCV RNA ≥12 weeks after completing treatment, 482 (97.6%) were cured of HCV infection. Following the launch of the elimination program, Georgia has made much progress in hepatitis C screening among persons who inject drugs; recent data demonstrate high cure rates achieved in this population. Testing at NSPs is an effective strategy for identifying persons with HCV infection. Tracking clients referred from NSPs through treatment completion allows for monitoring the effectiveness of linkage to care and treatment outcomes in this population at high risk, a key to achieving hepatitis C elimination in Georgia. The program in Georgia might serve as a model for other countries.


Assuntos
Erradicação de Doenças , Hepatite C , Programas de Rastreamento , Abuso de Substâncias por Via Intravenosa , Adolescente , Adulto , Feminino , Humanos , Masculino , Adulto Jovem , Hepatite C/epidemiologia , Hepatite C/prevenção & controle , Programas de Rastreamento/estatística & dados numéricos , Avaliação de Programas e Projetos de Saúde , Abuso de Substâncias por Via Intravenosa/epidemiologia , República da Geórgia/epidemiologia
7.
BMC Infect Dis ; 16(1): 445, 2016 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-27553785

RESUMO

BACKGROUND: Scant information is available on the infectious causes of febrile illnesses in Armenia. The goal of this study was to describe the most common causes, with a focus on zoonotic and arboviral infections and related epidemiological and clinical patterns for hospitalized patients with febrile illnesses of infectious origin admitted to Nork Infectious Diseases Clinical Hospital, the referral center for infectious diseases in the capital city, Yerevan. METHOD: A chart review study was conducted in 2014. Data were abstracted from medical charts of adults (≥18 years) with a fever (≥38 °C), who were hospitalized (for ≥24 h) in 2010-2012. RESULTS: Of the 600 patients whose charts were analyzed, 76 % were from Yerevan and 51 % were male; the mean age (± standard deviation) was 35.5 (±16) years. Livestock exposure was recorded in 5 % of charts. Consumption of undercooked meat and unpasteurized dairy products were reported in 11 and 8 % of charts, respectively. Intestinal infections (51 %) were the most frequently reported final medical diagnoses, followed by diseases of the respiratory system (11 %), infectious mononucleosis (9.5 %), chickenpox (8.3 %), brucellosis (8.3 %), viral hepatitis (3.2 %), and erysipelas (1.5 %). Reviewed medical charts included two cases of fever of unknown origin (FUO), two cutaneous anthrax cases, two leptospirosis cases, three imported malaria cases, one case of rickettsiosis, and one case of rabies. Engagement in agricultural activities, exposure to animals, consumption of raw or unpasteurized milk, and male gender were significantly associated with brucellosis. CONCLUSION: Our analysis indicated that brucellosis was the most frequently reported zoonotic disease among hospitalized febrile patients. Overall, these study results suggest that zoonotic and arboviral infections were not common etiologies among febrile adult patients admitted to the Nork Infectious Diseases Clinical Hospital in Armenia.


Assuntos
Doenças Transmissíveis/etiologia , Febre de Causa Desconhecida/etiologia , Adolescente , Adulto , Animais , Infecções por Arbovirus/etiologia , Armênia/epidemiologia , Brucelose/epidemiologia , Brucelose/etiologia , Doenças Transmissíveis/epidemiologia , Feminino , Febre de Causa Desconhecida/diagnóstico , Febre de Causa Desconhecida/epidemiologia , Hospitalização , Humanos , Leptospirose/epidemiologia , Leptospirose/etiologia , Gado , Malária/epidemiologia , Malária/etiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Infecções por Rickettsia/epidemiologia , Infecções por Rickettsia/etiologia , Adulto Jovem , Zoonoses/epidemiologia , Zoonoses/etiologia
8.
J Community Health ; 41(5): 939-45, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-26992893

RESUMO

In the past, several enteric outbreaks in 1996, 1998, 1999, and 2003 caused by Salmonella typhi, a Gram-negative bacterium, have occurred in Armenia. This study describes the demographic, epidemiological, and clinical characteristics of febrile hospitalized patients with intestinal infections in Armenia. Using a chart review study design, medical data from adult patients who were hospitalized at the Nork hospital during 2010-2012 were reviewed. A total of 600 medical charts were reviewed. Of these, 51 % were diagnosed with intestinal infections. Among these patients, 59 % had an intestinal infection of known etiology, with three main pathogens identified: Salmonella sp. (32 %), Shigella sp. (32 %), and Staphylococcus aureus (18 %). After controlling for the calendar year, age in years, and gender, patients detected with Salmonella sp. were more likely to reported the presence of a family member with similar signs or symptoms [odds ratio (OR) 9.0; 95 % CI 2.4-33.7] and the lack of a water tap at home (OR 3.9; 95 % CI 1.7-9.5). Evidence indicates that Salmonella sp., Shigella sp., and S. aureus as the most common etiologies reported among febrile hospitalized patients. A high percentage of patients had intestinal infections of unknown etiology; thus, improvement in laboratory capacity (enabling more advanced tests, such as polymerase chain reaction) would increase the identification of the enteropathogens causing disease in Armenia.


Assuntos
Febre , Gastroenteropatias/epidemiologia , Pacientes Internados , Adulto , Armênia/epidemiologia , Surtos de Doenças , Feminino , Febre/etiologia , Febre/fisiopatologia , Gastroenteropatias/etiologia , Gastroenteropatias/fisiopatologia , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Auditoria Médica , Pessoa de Meia-Idade , Vigilância da População , Estudos Retrospectivos , Salmonella typhi/isolamento & purificação , Shigella/isolamento & purificação , Staphylococcus/isolamento & purificação , Staphylococcus aureus/isolamento & purificação
9.
Transfus Clin Biol ; 30(3): 307-313, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36907246

RESUMO

BACKGROUND: In 2015, the country of Georgia initiated its hepatitis C virus (HCV) elimination program. Given a high background incidence of HCV infection, centralized nucleic acid testing (NAT) of blood donations was prioritized for implementation. STUDY DESIGN AND METHODS: Multiplex NAT screening for HIV, HCV and hepatitis B virus (HBV) was launched in January 2020. An analysis was conducted of serological and NAT donor/donation data for the first year of screening (through December 2020). RESULTS: A total of 54,116 donations representing 39,164 unique donors were evaluated. Overall, 671 donors (1.7%) tested positive for at least one infectious marker by serology or NAT, with the highest prevalence among donors aged 40-49 years (2.5%; n = 200), male (1.9%; n = 524), replacement (2.8%; n = 153) and first time (2.1%; n = 642) donors. Sixty donations were seronegative but NAT positive, and therefore would not have been found by traditional serology testing alone. These were more likely among female vs. male (adjusted odds ratio [aOR] 2.06; 95% confidence interval [95%CI]: 1.05-4.05), paid (aOR 10.15; 95%CI: 2.80-36.86) or voluntary (aOR 4.30; 95%CI: 1.27-14.56) vs replacement, and repeat vs. first time (aOR 13.98; 95%CI: 4.06-48.12) donors. On repeat serological testing (including HBV core antibody [HBcAb] testing), 6 HBV + donations, 5 HCV + donations and 1 HIV + donations were deemed NAT yield (detected through the implementation of NAT, and would have otherwise been missed by serology screening alone). CONCLUSION: This analysis offers a regional model for NAT implementation, demonstrating the feasibility and clinical utility in a nationwide blood program.


Assuntos
Infecções por HIV , Hepatite B , Hepatite C , Feminino , Humanos , Masculino , Doadores de Sangue , Segurança do Sangue , Transfusão de Sangue , Hepacivirus/genética , Hepatite B/diagnóstico , Hepatite B/epidemiologia , Hepatite B/prevenção & controle , Anticorpos Anti-Hepatite B , Vírus da Hepatite B/genética , Hepatite C/diagnóstico , Hepatite C/epidemiologia , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Técnicas de Amplificação de Ácido Nucleico , República da Geórgia/epidemiologia
10.
Subst Abuse Treat Prev Policy ; 17(1): 23, 2022 03 28.
Artigo em Inglês | MEDLINE | ID: mdl-35346265

RESUMO

BACKGROUND: People who inject drugs (PWID) in Georgia have a high prevalence of hepatitis C virus antibody (anti-HCV). Access to care among PWID could be prioritized to meet the country's hepatitis C elimination goals. This study assesses barriers of linkage to HCV viremia testing among PWID in Georgia. METHODS: Study participants were enrolled from 13 harm reduction (HR) centers throughout Georgia. Anti-HCV positive PWID who were tested for viremia (complete diagnosis [CD]), were compared to those not tested for viremia within 90 days of screening anti-HCV positive (not complete diagnosis [NCD]). Convenience samples of CD and NCD individuals recorded at HR centers using beneficiaries' national ID were drawn from the National HCV Elimination Program database. Participants were interviewed about potential barriers to seeking care. RESULTS: A total of 500 PWID were enrolled, 245 CD and 255 NCD. CD and NCD were similar with respect to gender, age, employment status, education, knowledge of anti-HCV status, and confidence/trust in the elimination program (p > 0.05). More NCD (13.0%) than CD (7.4%) stated they were not sufficiently informed what to do after screening anti-HCV positive (p < 0.05). In multivariate analysis, HCV viremia testing was associated with perceived affordability of the elimination program (adjusted prevalence ratio = 8.53; 95% confidence interval: 4.14-17.62). CONCLUSIONS: Post testing counselling and making hepatitis C services affordable could help increase HCV viremia testing among PWID in Georgia.


Assuntos
Usuários de Drogas , Hepatite C , Abuso de Substâncias por Via Intravenosa , Georgia/epidemiologia , Hepacivirus , Hepatite C/diagnóstico , Hepatite C/epidemiologia , Hepatite C/prevenção & controle , Humanos , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/epidemiologia , Viremia/complicações , Viremia/diagnóstico , Viremia/epidemiologia
11.
J Med Screen ; 29(2): 134-136, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35293802

RESUMO

OBJECTIVES: Georgia has a high prevalence of hepatitis C virus (HCV) infection. In 2015 a national HCV elimination program was launched providing free access to screening and treatment. To achieve elimination, innovative approaches to increase screening coverage and linkage to care are needed. This study estimates feasibility, acceptability, and outcomes of the door-to-door pilot HCV testing program in three cities. METHODS: Households were approached by system random sampling and all members were invited for study participation. Researchers used a detailed guide for conducting door-to-door testing and served as case navigators to link anti-HCV-positive individuals to care. RESULTS: Testing acceptance rate was high. In total 4804 individuals were tested and 48 (1.0%) were HCV positive. Among the entire sample of newly and previously tested individuals, overall HCV antibody prevalence was 3.6%. Through case navigation, of 48 newly identified and 26 previously identified anti-HCV-positive individuals, 42 (87.5%) and 17 (65.4%), respectively, were successfully linked to care. CONCLUSIONS: Door-to-door HCV testing has potential to increase testing uptake. Such community-based approaches not only improve testing, but can also serve to increase linkage to care, which is important in achieving the goal of HCV elimination. The study provides a model for high prevalence countries aiming to eliminate hepatitis C.


Assuntos
Anticorpos Anti-Hepatite C , Hepatite C , Georgia/epidemiologia , Hepacivirus , Hepatite C/diagnóstico , Hepatite C/epidemiologia , Hepatite C/prevenção & controle , Humanos , Programas de Rastreamento
12.
Lancet Glob Health ; 8(2): e244-e253, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31864917

RESUMO

BACKGROUND: Georgia has a high prevalence of hepatitis C, with 5·4% of adults chronically infected. On April 28, 2015, Georgia launched a national programme to eliminate hepatitis C by 2020 (90% reduction in prevalence) through scaled-up treatment and prevention interventions. We evaluated the interim effect of the programme and feasibility of achieving the elimination goal. METHODS: We developed a transmission model to capture the hepatitis C epidemic in Georgia, calibrated to data from biobehavioural surveys of people who inject drugs (PWID; 1998-2015) and a national survey (2015). We projected the effect of the administration of direct-acting antiviral treatments until Feb 28, 2019, and the effect of continuing current treatment rates until the end of 2020. Effect was estimated in terms of the relative decrease in hepatitis C incidence, prevalence, and mortality relative to 2015 and of the deaths and infections averted compared with a counterfactual of no treatment over the study period. We also estimated treatment rates needed to reach Georgia's elimination target. FINDINGS: From May 1, 2015, to Feb 28, 2019, 54 313 patients were treated, with approximately 1000 patients treated per month since mid 2017. Compared with 2015, our model projects that these treatments have reduced the prevalence of adult chronic hepatitis C by a median 37% (95% credible interval 30-44), the incidence of chronic hepatitis C by 37% (29-44), and chronic hepatitis C mortality by 14% (3-30) and have prevented 3516 (1842-6250) new infections and averted 252 (134-389) deaths related to chronic hepatitis C. Continuing treatment of 1000 patients per month is predicted to reduce prevalence by 51% (42-61) and incidence by 51% (40-62), by the end of 2020. To reach a 90% reduction by 2020, treatment rates must increase to 4144 (2963-5322) patients initiating treatment per month. INTERPRETATION: Georgia's hepatitis C elimination programme has achieved substantial treatment scale-up, which has reduced the burden of chronic hepatitis C. However, the country is unlikely to meet its 2020 elimination target unless treatment scales up considerably. FUNDING: CDC Foundation, National Institute for Health Research, National Institutes of Health.


Assuntos
Erradicação de Doenças/estatística & dados numéricos , Epidemias/prevenção & controle , Hepatite C Crônica/epidemiologia , Hepatite C Crônica/prevenção & controle , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Epidemias/estatística & dados numéricos , Feminino , República da Geórgia/epidemiologia , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Modelos Teóricos , Prevalência , Adulto Jovem
13.
Emerg Infect Dis ; 15(9): 1489-91, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19788822

RESUMO

We describe a laboratory-confirmed case of hantavirus infection in the Republic of Georgia. Limited information is available about hantavirus infections in the Caucasus, although the infection has been reported throughout Europe and Russia. Increasing awareness and active disease surveillance contribute to our improved understanding of the geographic range of this pathogen.


Assuntos
Infecções por Hantavirus , Insuficiência Renal , Adulto , Anticorpos Antivirais/sangue , Biópsia , República da Geórgia , Vírus Hantaan/imunologia , Orthohantavírus/imunologia , Infecções por Hantavirus/patologia , Infecções por Hantavirus/virologia , Humanos , Rim , Masculino , Insuficiência Renal/patologia , Insuficiência Renal/virologia
14.
J Spec Oper Med ; 18(2): 136-140, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29889971

RESUMO

Military personnel are at an increased risk for exposure to arthropod- borne and zoonotic pathogens. The prevalence of these pathogens has not been adequately described in the country of Georgia. As the Georgian military moves toward an increased level of capability and the adoption of European Union and North Atlantic Treaty Organization standards, international field exercises will become more frequent and will likely involve an increasing number of international partners. This study was undertaken with the goal of defining the arthropod-borne and zoonotic pathogen threat in Georgia so force health protection planning can proceed in a rational and data-driven manner. To estimate disease burden, blood was taken from 1,000 Georgian military recruits between October 2014 and February 2016 and screened for previous exposure to a set of bacterial and viral pathogens using a antibody-based, serologic procedure. The highest rate of exposure was to Salmonella enterica serovar Typhi, and the lowest rate of exposure was to Coxiella burnettii (the causative agent of Q fever). These data provide insight into the prevalence of arthropod-borne infections in Georgia, fill a critical knowledge gap, will help guide future surveillance efforts, and will inform force health protection planning.


Assuntos
Infecções Bacterianas/epidemiologia , Militares/estatística & dados numéricos , Viroses/epidemiologia , Zoonoses/epidemiologia , Adulto , Animais , Anticorpos Antibacterianos/sangue , Anticorpos Antivirais/sangue , Artrópodes , Infecções Bacterianas/imunologia , Infecções Bacterianas/transmissão , Feminino , República da Geórgia/epidemiologia , Humanos , Masculino , Estudos Soroepidemiológicos , Viroses/imunologia , Viroses/transmissão , Zoonoses/imunologia , Zoonoses/transmissão
15.
PLoS One ; 11(3): e0148713, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27007118

RESUMO

Several different human vaccines are available to protect against anthrax. We compared the human adaptive immune responses generated by three different anthrax vaccines or by previous exposure to cutaneous anthrax. Adaptive immunity was measured by ELISPOT to count cells that produce interferon (IFN)-γ in response to restimulation ex vivo with the anthrax toxin components PA, LF and EF and by measuring circulating IgG specific to these antigens. Neutralising activity of antisera against anthrax toxin was also assayed. We found that the different exposures to anthrax antigens promoted varying immune responses. Cutaneous anthrax promoted strong IFN-γ responses to all three antigens and antibody responses to PA and LF. The American AVA and Russian LAAV vaccines induced antibody responses to PA only. The British AVP vaccine produced IFN-γ responses to EF and antibody responses to all three antigens. Anti-PA (in AVA and LAAV vaccinees) or anti-LF (in AVP vaccinees) antibody titres correlated with toxin neutralisation activities. Our study is the first to compare all three vaccines in humans and show the diversity of responses against anthrax antigens.


Assuntos
Imunidade Adaptativa/imunologia , Vacinas contra Antraz/imunologia , Antraz/imunologia , Dermatopatias Bacterianas/imunologia , Adulto , Anticorpos Antibacterianos/imunologia , Antígenos de Bactérias/imunologia , Toxinas Bacterianas/imunologia , Feminino , Humanos , Soros Imunes/imunologia , Imunoglobulina G/imunologia , Interferon gama/imunologia , Masculino , Pessoa de Meia-Idade , Vacinação/métodos
16.
Am J Trop Med Hyg ; 94(1): 236-42, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26438032

RESUMO

Information on the infectious causes of undifferentiated acute febrile illness (AFI) in Georgia is essential for effective treatment and prevention. In May 2008, a hospital-based AFI surveillance was initiated at six hospitals in Georgia. Patients aged ≥ 4 years with fever ≥ 38°C for ≥ 48 hours were eligible for surveillance. Blood culture and serologic testing were conducted for Leptospira spp., Brucella spp., West Nile virus (WNV), Crimean-Congo hemorrhagic fever virus, Coxiella burnetii, tick-borne encephalitis virus (TBEV), hantavirus, Salmonella enterica serovar Typhi (S. Typhi), and Rickettsia typhi. Of 537 subjects enrolled, 70% were outpatients, 54% were males, and the mean age was 37 years. Patients reported having fatigue (89%), rigors (87%), sweating (83%), pain in joints (49%), and sleep disturbances (42%). Thirty-nine (7%) patients were seropositive for R. typhi, 37 (7%) for Brucella spp., 36 (7%) for TBEV, 12 (2%) for Leptospira spp., 10 (2%) for C. burnetii, and three (0.6%) for S. Typhi. None of the febrile patients tested positive for WNV antibodies. Of the patients, 73% were negative for all pathogens. Our results indicate that most of the targeted pathogens are present in Georgia, and highlight the importance of enhancing laboratory capacity for these infectious diseases.


Assuntos
Infecções Bacterianas/diagnóstico , Febre/etiologia , Viroses/diagnóstico , Adolescente , Adulto , Infecções Bacterianas/epidemiologia , Criança , Pré-Escolar , Feminino , Febre/diagnóstico , Febre/epidemiologia , República da Geórgia/epidemiologia , Hospitais , Humanos , Masculino , Pessoa de Meia-Idade , Viroses/epidemiologia , Adulto Jovem
18.
Am J Trop Med Hyg ; 91(2): 246-8, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24891463

RESUMO

Minimal information is available on the incidence of Crimean-Congo hemorrhagic fever (CCHF) virus and hantavirus infections in Georgia. From 2008 to 2011, 537 patients with fever ≥ 38°C for ≥ 48 hours without a diagnosis were enrolled into a sentinel surveillance study to investigate the incidence of nine pathogens, including CCHF virus and hantavirus. Of 14 patients with a hemorrhagic fever syndrome, 3 patients tested positive for CCHF virus immunoglobulin M (IgM) antibodies. Two of the patients enrolled in the study had acute renal failure. These 2 of 537 enrolled patients were the only patients in the study positive for hantavirus IgM antibodies. These results suggest that CCHF virus and hantavirus are contributing causes of acute febrile syndromes of infectious origin in Georgia. These findings support introduction of critical diagnostic approaches and confirm the need for additional surveillance in Georgia.


Assuntos
Injúria Renal Aguda/epidemiologia , Anticorpos Antivirais/sangue , Infecções por Hantavirus/epidemiologia , Febre Hemorrágica da Crimeia/epidemiologia , Imunoglobulina M/sangue , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/imunologia , Injúria Renal Aguda/virologia , Adolescente , Adulto , Criança , Pré-Escolar , Ensaio de Imunoadsorção Enzimática , Monitoramento Epidemiológico , Feminino , Georgia/epidemiologia , Orthohantavírus/patogenicidade , Orthohantavírus/fisiologia , Infecções por Hantavirus/complicações , Infecções por Hantavirus/imunologia , Infecções por Hantavirus/virologia , Vírus da Febre Hemorrágica da Crimeia-Congo/fisiologia , Febre Hemorrágica da Crimeia/imunologia , Febre Hemorrágica da Crimeia/virologia , Humanos , Masculino
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