RESUMO
INTRODUCTION: Bacterial meningitis is a serious disease with a mortality rate of 15-20% in adults. We conducted a population-based study of bacterial meningitis in adults (≥ 16 y) in Iceland, 1995-2010. METHODS: Cases were identified based on positive bacterial cultures from cerebrospinal fluid (CSF) and/or the ICD codes for bacterial meningitis. Medical charts were reviewed and outcomes were assessed using the national population registry. The study period was divided into 2 equal parts, 1995-2002 and 2003-2010, before and after implementation of routine childhood vaccination against serogroup C meningococci, respectively. RESULTS: In total, 111 episodes occurred in 110 individuals. The most common causative organisms were Neisseria meningitidis (41%) and Streptococcus pneumoniae (30%). Only 30% of the patients presented with the classical symptom triad of fever, neck stiffness, and an altered mental status. The overall incidence was 3.2/100,000 inhabitants/y, and dropped significantly between the first and second halves of the study (p = 0.03). This drop was due to a reduced incidence of N. meningitidis meningitis: 34 and 12 cases in the first and second periods, respectively (p = 0.006). The incidence of meningitis caused by S. pneumoniae remained unchanged. The case fatality rates were 18% and 13% in the first and second halves of the study, respectively (difference not significant). CONCLUSIONS: The incidence of bacterial meningitis has decreased since the implementation of meningococcal C vaccination in 2002. However, the case fatality rate has remained unchanged.
Assuntos
Meningites Bacterianas/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Islândia/epidemiologia , Masculino , Meningites Bacterianas/diagnóstico , Meningites Bacterianas/microbiologia , Pessoa de Meia-Idade , Neisseria meningitidis/isolamento & purificação , Infecções Pneumocócicas/diagnóstico , Infecções Pneumocócicas/epidemiologia , Estudos Retrospectivos , Streptococcus pneumoniae/isolamento & purificação , Adulto JovemRESUMO
BACKGROUND: WHO has set targets to eliminate hepatitis C virus (HCV) infection as a global health threat by 2030 through a 65% reduction in HCV-related deaths and 80% reduction in HCV incidence. To achieve these goals, WHO set service coverage targets of 90% of the infected population being diagnosed and 80% of eligible patients being treated. In February, 2016, Iceland initiated a nationwide HCV elimination programme known as treatment as prevention for hepatitis C (TraP HepC), which aimed to maximise diagnosis and treatment access. This analysis reports on the HCV cascade of care in the first 3 years of the programme. METHODS: This population-based study was done between Feb 10, 2016, and Feb 10, 2019. Participants aged 18 years or older with permanent residence in Iceland and PCR-confirmed HCV were offered direct-acting antiviral (DAA) therapy. The programme used a multidisciplinary team approach in which people who inject drugs were prioritised. Nationwide awareness campaigns, improved access to testing, and harm reduction services were scaled up simultaneously. The number of infected people in the national HCV registry was used in combination with multiple other data sources, including screening of low-risk groups and high-risk groups, to estimate the total number of HCV infections. The number of people diagnosed, linked to care, initiated on treatment, and cured were recorded during the study. This study is registered with ClinicalTrials.gov, NCT02647879. FINDINGS: In February, 2016, at the onset of the programme, 760 (95% CI 690-851) individuals were estimated to have HCV infection, with 75 (95% CI 6-166) individuals undiagnosed. 682 individuals were confirmed to be HCV PCR positive. Over the next 3 years, 183 new infections (including 42 reinfections) were diagnosed, for a total of 865 infections in 823 individuals. It was estimated that more than 90% of all domestic HCV infections had been diagnosed as early as January, 2017. During the 3 years, 824 (95·3%) of diagnosed infections were linked to care, and treatment was initiated for 795 (96·5%) of infections linked to care. Cure was achieved for 717 (90·2%) of 795 infections. INTERPRETATION: By using a multidisciplinary public health approach, involving tight integration with addiction treatment services, the core service coverage targets for 2030 set by WHO have been reached. These achievements position Iceland to be among the first nations to subsequently achieve the WHO goal of eliminating HCV as a public health threat. FUNDING: The Icelandic Government and Gilead Sciences.
Assuntos
Antivirais/uso terapêutico , Atenção à Saúde/métodos , Hepatite C/prevenção & controle , Vigilância da População/métodos , Saúde Pública , Idoso , DNA Viral/análise , Feminino , Seguimentos , Hepacivirus/genética , Hepatite C/epidemiologia , Humanos , Islândia/epidemiologia , Incidência , Masculino , Pessoa de Meia-Idade , Estudos RetrospectivosRESUMO
BACKGROUND: Patients colonized or infected with vancomycin-resistant enterococcus and methicillin-resistant Staphylococcus aureus may be at risk of acquiring vancomycin-resistant S. aureus if the vanA gene is transferred from vancomycin-resistant enterococcus to methicillin-resistant S. aureus. OBJECTIVE: Our goal was to identify risk factors for cocolonization or coinfection (CC/CI) with vancomycin-resistant enterococcus and methicillin-resistant S. aureus. DESIGN: We conducted a descriptive, epidemiologic study of all patients with CC/CI identified from January 1998 to May 2003 and a nested case-control study of a cohort of patients hospitalized in the burn and wound unit. SETTING: We conducted our study in a 813-bed tertiary care university teaching hospital. POPULATION: The study population consisted of patients found to have CC/CI during the study period. METHODS: Descriptive epidemiologic data were collected from hospital records of all patients identified as having CC/CI. A subset of patients hospitalized in the burn and wound unit were included in a case-control study. RESULTS: CC/CI was detected in 71% of the patients during a single hospital stay. The burn and wound unit, which does active surveillance for both organisms, and the general medicine unit, which does not do active surveillance for either organism, cared for more than one-half of these patients. Among patients being cared for in the burn and wound unit, having exposure to 2 or more invasive devices (central venous catheters, indwelling urinary catheters, and enteral feeding tubes) and renal insufficiency were independent risk factors for CC/CI. CONCLUSIONS: Patients with CC/CI are the population at greatest risk for vancomycin-resistant S. aureus colonization or infection. The number of invasive devices to which patients are exposed and, thus, possibly the patients' underlying severity of illness, as well as renal insufficiency, appear to be risk factors for CC/CI.
Assuntos
Infecção Hospitalar/epidemiologia , Resistência a Meticilina/genética , Infecções Estafilocócicas/complicações , Infecções Estreptocócicas/complicações , Resistência a Vancomicina/genética , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Iowa/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/transmissão , Infecções Estreptocócicas/epidemiologia , Infecções Estreptocócicas/transmissãoRESUMO
One of the more common reasons patients seek medical advice after traveling in tropical countries are skin eruptions. Here we describe two cases of individuals who, after traveling to south east Asia, developed a skin eruption later diagnosed as cutaneous larva migrans. This particular skin condition is common among travelers to countries where the hookworm responsible is endemic. The diagnosis is based on travel history and clinical examination. The patients were treated with albendazole with good results and complete resolution of the symptoms.
Assuntos
Larva Migrans/diagnóstico , Prurido/diagnóstico , Viagem , Albendazol/uso terapêutico , Antinematódeos/uso terapêutico , Ásia , Humanos , Islândia , Larva Migrans/tratamento farmacológico , Larva Migrans/parasitologia , Prurido/tratamento farmacológico , Prurido/parasitologia , Resultado do Tratamento , Adulto JovemRESUMO
Herpes simplex encephalitis (HSE) is a serious disease with 10-20% mortality and high rate of neuropsychiatric sequelae. This study is a long-term, nationwide study in a single country, Iceland. Clinical data were obtained from patient records and from DNA PCR and antibody assays of CSF. Diagnosis of HSE was classified as definite, possible or rejected based on symptoms, as well as virological, laboratory and brain imaging criteria. A total of 30 definite cases of HSE were identified during the 25 year period 1987-2011 corresponding to incidence of 4.3 cases/106 inhabitants/year. Males were 57% of all patients, median age 50 years (range, 0-85). Fever (97%), cognitive deficits (79%), impaired consciousness (79% with GCS < 13), headache (55%) and seizures (55%) were the most common symptoms. Brain lesions were found in 24 patients (80%) by MRI or CT. All patients received intravenous acyclovir for a mean duration of 20 days. Three patients (10%) died within one year and 21/28 pts (75%) had a Karnofsky performance score of <70% with memory loss (59%), dysphasia (44%), frontal symptoms (44%) and seizures (30%) as the most frequent sequelae. Mean delay from onset of symptoms to treatment was 6 days; this was associated with adverse outcome. In conclusion, the incidence of `HSE is higher than recently reported in a national registry study from Sweden. Despite advances in rapid diagnosis and availability of treatment of HSE, approximately three of every four patients die or are left with serious neurological impairment.
RESUMO
BACKGROUND: Nocardia is a rare pathogen of mainly immunocomprised patients. Only two cases of nocardiosis have previously been identified in Iceland. CASE DESCRIPTION: A 92-year-old male on glucocorticoid therapy with metastatic bladder cancer presented with two weeks history of progressive swelling and erythema of the hand and deteriorating cognitive functioning. A brain lesion and pulmonary nodules were identified and Nocardia farcinia was cultured from a hand abscess. The patient was initially treated with trimethoprim/sulfamethoxazole but because of rapid deterioration and old age an end-of-life decision was made. CONCLUSION: This case of nocardiosis illustrates the importance of uncommon opportunistic infections in immunocompromised Icelandic patients.
Assuntos
Celulite (Flegmão)/microbiologia , Glucocorticoides/efeitos adversos , Hospedeiro Imunocomprometido , Nocardiose/microbiologia , Infecções Oportunistas/microbiologia , Neoplasias da Bexiga Urinária/tratamento farmacológico , Idoso de 80 Anos ou mais , Anti-Infecciosos/uso terapêutico , Celulite (Flegmão)/tratamento farmacológico , Celulite (Flegmão)/imunologia , Celulite (Flegmão)/patologia , Edema/microbiologia , Eritema/microbiologia , Mãos , Humanos , Masculino , Nocardia/isolamento & purificação , Nocardiose/tratamento farmacológico , Nocardiose/imunologia , Nocardiose/patologia , Infecções Oportunistas/tratamento farmacológico , Infecções Oportunistas/imunologia , Infecções Oportunistas/patologia , Combinação Trimetoprima e Sulfametoxazol/uso terapêutico , Neoplasias da Bexiga Urinária/imunologia , Neoplasias da Bexiga Urinária/secundárioRESUMO
To improve immune responses to influenza vaccine, a trivalent inactivated vaccine containing 60 microg of the HA of each component (A/H3N2, A/H1N1, B) was compared to a licensed vaccine containing 15 microg of the HA of each. More local and systemic reactions were reported by subjects given the high dosage but only local pain and myalgias were significantly increased. The high dosage vaccine induced a higher frequency of serum antibody increases (> or =4-fold) in both hemagglutination-inhibiting (HAI) and neutralization tests for all three vaccine viruses in the total group as well as subjects vaccinated and those not vaccinated the previous year. Mean titers of antibody attained, the magnitude of antibody increases and the frequencies of persons with final HAI antibody titers > or =1:32, > or =1:64, and > or =1:128 were all greater for the high dosage group in both serologic tests, for all groups, and for all vaccine viruses. These increased immune responses should provide increased protection against influenza in the elderly.