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https://www.readbyqxmd.com/read/28527491/development-of-live-attenuated-bacterial-vaccines-targeting-escherichia-coli-heat-labile-and-heat-stable-enterotoxins
#1
Chengru Zhu, Prashanth Setty, Edgar C Boedeker
Enterotoxigenic Escherichia coli (ETEC), defined by the production of heat labile (LT) and/or heat stable (ST) toxins, are major causes of diarrhea in animals, children in developing countries and to travelers. No broadly protective ETEC vaccine is available, largely because of the difficulty in inducing immunity to the small ST molecule. To take advantage of the demonstration (Liu et al., 2011; Zhang et al., 2013, 2010) that genetically produced fusions of mutant ST with LT subunits can induce effective immunity against both toxins, we engineered a live attenuated vaccine vector strain of E...
April 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28526972/patient-experiences-attitudes-and-expectations-towards-receiving-information-about-anti-tnf-medication-a-quantitative-study
#2
Jon Packham, Paul Arkell, Tom Sheeran, Ann Brownfield, Anthony Cadwgan, Sarah Ryan
The objective of the study was to measure patient attitudes and experience of information received during drug counselling for rheumatoid arthritis (RA) medications. This is a cross-sectional UK postal questionnaire study. Three RA patient groups-disease-modifying antirheumatic drugs (DMARDs) only, first anti-tumour necrosis factor (anti-TNF) and failed anti-TNF-were sent postal questionnaires. Data on patient history/demographics, drug counselling experience, knowledge of drug side effects, attitudes to vaccinations, cancer screening and blood borne virus testing was collected; 264/679 (39%) patients responded (median age 65 years, 66% female, median disease duration 15 years)...
May 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28515625/overview-of-the-impact-of-typhoid-and-paratyphoid-fever-utility-of-ty21a-vaccine-vivotif%C3%A2
#3
REVIEW
D Amicizia, L Arata, F Zangrillo, D Panatto, R Gasparini
Cases of diarrhoeal disease number from 1.7 to 5 billion per year worldwide. One of the main causes of diarrhoeal disease is typhoid fever, which is a potentially life-threatening multi-systemic illness. According to the most recent estimates, a total of 26.9 million typhoid fever episodes occurred in 2010. The geographical distribution of the disease differs widely; in developed countries, the incidence rate per 100,000 per year varies from < 0.1 to 0.3, and the disease mainly affects people who travel to endemic areas located in low- and middle-income countries...
March 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28505661/why-aren-t-international-travelers-vaccinated-for-measles
#4
Lori K Handy, Paul A Offit
No abstract text is available yet for this article.
May 16, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28505632/missed-opportunities-for-measles-mumps-rubella-vaccination-among-departing-u-s-adult-travelers-receiving-pretravel-health-consultations
#5
Emily P Hyle, Sowmya R Rao, Emily S Jentes, Amy Parker Fiebelkorn, Stefan H F Hagmann, Allison Taylor Walker, Rochelle P Walensky, Edward T Ryan, Regina C LaRocque
Background: Measles outbreaks continue to occur in the United States and are mostly due to infections in returning travelers. Objective: To describe how providers assessed the measles immunity status of departing U.S. adult travelers seeking pretravel consultation and to assess reasons given for nonvaccination among those considered eligible to receive the measles, mumps, rubella (MMR) vaccine. Design: Observational study in U.S. pretravel clinics...
May 16, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28493905/melioidosis-clinical-impact-and-public-health-threat-in-the-tropics
#6
REVIEW
Ramar Perumal Samy, Bradley G Stiles, Gautam Sethi, Lina H K Lim
This review briefly summarizes the geographical distribution and clinical impact of melioidosis, especially in the tropics. Burkholderia pseudomallei (a gram-negative bacterium) is the major causative agent for melioidosis, which is prevalent in Singapore, Malaysia, Thailand, Vietnam, and Northern Australia. Melioidosis patients are increasingly being recognized in other parts of the world. The bacteria are intrinsically resistant to many antimicrobial agents, but prolonged treatment, especially with combinations of antibiotics, may be effective...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28493859/recommendations-of-the-advisory-committee-on-immunization-practices-for-use-of-cholera-vaccine
#7
Karen K Wong, Erin Burdette, Barbara E Mahon, Eric D Mintz, Edward T Ryan, Arthur L Reingold
Cholera, caused by infection with toxigenic Vibrio cholerae bacteria of serogroup O1 (>99% of global cases) or O139, is characterized by watery diarrhea that can be severe and rapidly fatal without prompt rehydration. Cholera is endemic in approximately 60 countries and causes epidemics as well. Globally, cholera results in an estimated 2.9 million cases of disease and 95,000 deaths annually (1). Cholera is rare in the United States, and most U.S. cases occur among travelers to countries where cholera is endemic or epidemic...
May 12, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28493351/human-zika-and-west-nile-virus-neurological-infections-what-is-the-difference
#8
REVIEW
Clayton A Wiley, Leila Chimelli
The recent epidemic of West Nile Virus (WNV) infection in the United States was associated with severe neurological disease in immunocompromised hosts, while the emergence of Zika virus infection in the Americas has been notable for an association with increased microcephaly in the fetuses of infected mothers. Rare autopsies of WNV infected humans have shown multiple organ involvement with a clear neurotropism. We have recently had the opportunity to examine the distribution of Zika virus in autopsies of newborns from infected pregnancies...
May 11, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28484344/economic-evaluations-of-vaccines-in-canada-a-scoping-review
#9
REVIEW
Ellen R S Rafferty, Heather L Gagnon, Marwa Farag, Cheryl L Waldner
BACKGROUND: This study aims to summarise and describe the evolution of published economic evaluations of vaccines in Canada, thereby outlining the current state of this expanding and meaningful research. METHODS: Using Arksey and O'Malley's scoping review framework we assembled relevant research from both academic and grey literature. Following abstract and full-text review we identified 60 articles to be included in the final analysis. RESULTS: We found that since 1988 there has been a steady increase in the number of economic evaluations on vaccines in Canada...
2017: Cost Effectiveness and Resource Allocation: C/E
https://www.readbyqxmd.com/read/28475640/multiplex-real-time-pcr-panels-to-identify-fourteen-colonization-factors-of-enterotoxigenic-escherichia-coli-etec
#10
Jie Liu, Sasikorn Silapong, Pimmada Jeanwattanalert, Paphavee Lertsehtakarn, Ladaporn Bodhidatta, Brett Swierczewski, Carl Mason, Annette L McVeigh, Stephen J Savarino, Rosemary Nshama, Esto Mduma, Athanasia Maro, Jixian Zhang, Jean Gratz, Eric R Houpt
Enterotoxigenic Escherichia coli (ETEC) is a leading cause of childhood diarrhea in low income countries and in travelers to those areas. Inactivated enterotoxins and colonization factors (CFs) are leading vaccine candidates, therefore it is important to determine the prevailing CF types in different geographic locations and populations. Here we developed real time PCR (qPCR) assays for 14 colonization factors, including the common vaccine targets. These assays, along with three enterotoxin targets (STh, STp, and LT) were formulated into three 5-plex qPCR panels, and validated on 120 ETEC isolates and 74 E...
2017: PloS One
https://www.readbyqxmd.com/read/28472027/surveillance-of-vaccination-coverage-among-adult-populations-united-states-2015
#11
Walter W Williams, Peng-Jun Lu, Alissa O'Halloran, David K Kim, Lisa A Grohskopf, Tamara Pilishvili, Tami H Skoff, Noele P Nelson, Rafael Harpaz, Lauri E Markowitz, Alfonso Rodriguez-Lainz, Amy Parker Fiebelkorn
PROBLEM/CONDITION: Overall, the prevalence of illness attributable to vaccine-preventable diseases is greater among adults than among children. Adults are recommended to receive vaccinations based on their age, underlying medical conditions, lifestyle, prior vaccinations, and other considerations. Updated vaccination recommendations from CDC are published annually in the U.S. Adult Immunization Schedule. Despite longstanding recommendations for use of many vaccines, vaccination coverage among U...
May 5, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28472025/addressing-a-yellow-fever-vaccine-shortage-united-states-2016-2017
#12
Mark D Gershman, Kristina M Angelo, Julian Ritchey, David P Greenberg, Riyadh D Muhammad, Gary Brunette, Martin S Cetron, Mark J Sotir
Recent manufacturing problems resulted in a shortage of the only U.S.-licensed yellow fever vaccine. This shortage is expected to lead to a complete depletion of yellow fever vaccine available for the immunization of U.S. travelers by mid-2017. CDC, the Food and Drug Administration (FDA), and Sanofi Pasteur are collaborating to ensure a continuous yellow fever vaccine supply in the United States. As part of this collaboration, Sanofi Pasteur submitted an expanded access investigational new drug (eIND) application to FDA in September 2016 to allow for the importation and use of an alternative yellow fever vaccine manufactured by Sanofi Pasteur France, with safety and efficacy comparable to the U...
May 5, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28465152/ex-situ-and-in-situ-characterization-of-vaccine-suspensions-in-pre-filled-syringes
#13
Lavinia M Lewis, Jianxin Guo, Ekaterina Torres, Jijun Wang, Hilbert Billones, Parag Kolhe, Anthony L Young, David Bates, Andrew Parker, Shellie Rigby-Singleton
Ex-situ and in-situ techniques were used to characterize the suspended phase over time for a vaccine drug product supplied in syringes. Micro-CT was used to characterize the suspended sediment in-situ in the syringe, while traditional techniques such as particle size distribution, charge (zeta potential), settling rate and front-faced-fluorescence were used to characterize the suspension ex-situ. In addition, analytical chemical measurements were conducted in parallel during the course of the study. The ex-situ and in-situ techniques together with the chemical analyses provided different sets of data, but all leading to the same conclusion that the older hard to re-disperse vaccine product syringes were similar in product quality attributes (both physical and chemical) to the freshly made easy to re-disperse syringes...
April 29, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28445250/enteric-fever-in-children-in-western-sydney-australia-2003-2015
#14
Ameneh Khatami, Fouzia Khan, Kristine K Macartney
BACKGROUND: Enteric fever is a vaccine-preventable disease with cases in Australia predominantly acquired overseas. The aim of this study was to define the burden of enteric fever in children presenting to a pediatric hospital in Western Sydney between 2003 and 2015. METHODS: Cases between January 2003 and December 2013 were ascertained through medical records using ICD-coded discharge diagnoses, cross-referenced with microbiology laboratory data for all isolates of Salmonella enterica serovar Typhi (S...
April 25, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28442104/zika-virus-infection-and-its-emerging-trends-in-southeast-asia
#15
REVIEW
Ahmad Ruzain Salehuddin, Haszianaliza Haslan, Norshalizah Mamikutty, Nurul Hannim Zaidun, Mohamad Fairuz Azmi, Mohamad Mu'izuddin Senin, Syed Baharom Syed Ahmad Fuad, Zar Chi Thent
Zika virus is a mosquito-borne flavivirus that represents a public health emergency at the ongoing epidemic. Previously, this rare virus was limited to sporadic cases in Africa and Asia until its emergence in Brazil, South America in 2015, where it rapidly spread throughout the world. Recently, a high number of cases were reported in Singapore and other Southeast Asia countries. A combination of factors explains the current Zika virus outbreak although it is highly likely that the changes in the climate and high frequency of travelling contribute to the spread of Aedes vector carrying the Zika virus mainly to the tropical climate countries such as the Southeast Asia...
March 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28441266/safety-of-the-inactivated-japanese-encephalitis-virus-vaccine-ixiaro%C3%A2-in-children-an-open-label-randomized-active-controlled-phase-3-study
#16
Katrin L Dubischar, Vera Kadlecek, Benjamin Sablan, Charissa Fay Borja-Tabora, Salvacion Gatchalian, Susanne Eder-Lingelbach, Zsuzsanna Mueller, Kerstin Westritschnig
BACKGROUND: Japanese encephalitis (JE) remains a serious health concern in Asian countries and has sporadically affected pediatric travelers. In the present study we monitored the safety profile of the JE virus (JEV) vaccine IXIARO in a pediatric population. METHODS: We randomized 1869 children between the age of 2 months and 17 years in an age-stratified manner to vaccination with IXIARO or one of the control vaccines, Prevnar and HAVRIX 720. Adverse events (AEs) (unsolicited and solicited local and systemic adverse events), serious AEs and medically-attended AEs were assessed up to Day 56 and Month 7 after the first dose...
April 24, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28430748/immunogenicity-of-the-inactivated-japanese-encephalitis-virus-vaccine-ixiaro%C3%A2-n-children-from-a-japanese-encephalitis-virus-endemic-region
#17
Katrin L Dubischar, Vera Kadlecek, Benjamin Sablan, Charissa Fay Borja-Tabora, Salvacion Gatchalian, Susanne Eder-Lingelbach, Sigrid Kiermayr, Martin Spruth, Kerstin Westritschnig
BACKGROUND: Japanese encephalitis (JE) is a major public health concern in Asia and poses a small, but potentially fatal threat to travelers from non-endemic countries, including children. No JE vaccine for pediatric use has been available in Europe and the USA. METHODS: Age-stratified cohorts of children between 2 months and 17 years received 2 doses of Vero cell-derived inactivated JE virus vaccine (IXIARO) administered 28 days apart (<3 years 0.25 mL [half adult dose], ≥3 years 0...
April 19, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28426111/importation-of-yellow-fever-into-china-assessing-travel-patterns
#18
Annelies Wilder-Smith, W Y Leong
Rapid increase in trade and a growing air passenger market encourages high travel volume between the regions associated with increasing risks of such importations including China. Eleven Chinese workers infected during the 2016 yellow fever (YF) outbreak in Angola imported YF into China highlighting the potential for spread into Asia. Using outbound and inbound travel data, we assessed travel patterns from and to YF endemic countries in relation to China. Among YF endemic countries, Angola has the second highest number of travellers into China and also receives the second highest number of Chinese visitors...
July 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28414993/chikungunya-virus-infections-time-to-act-time-to-treat
#19
REVIEW
Rana Abdelnabi, Johan Neyts, Leen Delang
Chikungunya virus (CHIKV) is a re-emerging alphavirus that caused massive outbreaks of Chikungunya fever in several countries and regions in Africa, Asia and more recently in Central and South America. An acute CHIKV infection is usually associated with fever and arthritis and it is rarely fatal. However, 15-60% of patients suffer from chronic polyarthralgia for weeks, months or even for several years after the acute infection. There are currently no vaccines or antivirals available for the prevention or treatment of CHIKV infections...
April 14, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28414002/global-importation-and-population-risk-factors-for-measles-in-new-zealand-a-case-study-for-highly-immunized-populations
#20
D T S Hayman, J C Marshall, N P French, T E Carpenter, M G Roberts, T Kiedrzynski
As endemic measles is eliminated through immunization, countries must determine the risk factors for the importation of measles into highly immunized populations to target control measures. Despite eliminating endemic measles, New Zealand suffers from outbreaks after introductions from abroad, enabling us to use it as a model for measles introduction risk. We used a generalized linear model to analyze risk factors for 1137 measles cases from 2007 to June 2014, provide estimates of national immunity levels, and model measles importation risk...
April 17, 2017: Epidemiology and Infection
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