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Transfusion Transmissible Infections

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https://www.readbyqxmd.com/read/28924431/occult-hepatitis-infection-in-transfusion-medicine-screening-policy-and-assessment-of-current-use-of-anti-hbc-testing
#1
REVIEW
Antonella Esposito, Chiara Sabia, Carmela Iannone, Giovanni F Nicoletti, Linda Sommese, Claudio Napoli
HBV still represents a global risk factor in transfusion medicine. The residual risk of HBV is not limited to pre-seroconversion window period but it extends to donors with occult HBV infection (OBI) characterized by the presence of HBV DNA in liver and by the absence of the virus surface antigen. Each country developed an appropriate blood screening policy according to local HBV prevalence, yields of infectious units per different screening methods and cost-effectiveness. We underline the need of maintaining a high level of attention for OBI carrier identification in all blood banks worldwide where the screening procedures are generally based on a combination of both serological markers and nucleic acid amplification test...
August 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/28921551/zika-virus-rna-detection-in-asymptomatic-blood-donors-during-an-outbreak-in-the-northeast-region-of-s%C3%A3-o-paulo-state-brazil-2016
#2
Svetoslav N Slavov, Marta R Hespanhol, Evandra S Rodrigues, José E Levi, Eugênia M A Ubiali, Dimas T Covas, Simone Kashima
BACKGROUND: In 2015, there was a large Zika virus (ZIKV) outbreak in Brazil. The proportion of asymptomatic infections is very high, and it is possible for transfusion-transmitted ZIKV (TT-ZIKV) infection to occur. The prevalence of asymptomatic ZIKV infection among Brazilian blood donors during this epidemic outbreak is unknown. STUDY DESIGN AND METHODS: Plasma samples obtained between October 2015 and May 2016 from 1393 volunteer blood donors were tested for ZIKV RNA...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28913908/provision-of-cellular-blood-components-to-cmv-seronegative-patients-undergoing-allogeneic-stem-cell-transplantation-in-the-uk-survey-of-uk-transplant-centres
#3
S Morton, A Peniket, R Malladi, M F Murphy
OBJECTIVES: To identify current UK practice with regards to provision of blood components for cytomegalovirus (CMV)-seronegative, potential, allogeneic stem cell recipients of seronegative grafts. BACKGROUND: Infection with CMV remains a major cause of morbidity and mortality after allogeneic stem cell transplantation (aSCT). CMV transmission has been a risk associated with the transfusion of blood components from previously exposed donors, but leucocyte reduction has been demonstrated to minimise this risk...
September 15, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28905395/st-louis-encephalitis-virus-possibly-transmitted-through-blood-transfusion-arizona-2015
#4
Heather Venkat, Laura Adams, Rebecca Sunenshine, Elisabeth Krow-Lucal, Craig Levy, Tammy Kafenbaum, Tammy Sylvester, Kirk Smith, John Townsend, Melissa Dosmann, Hany Kamel, Roberto Patron, Matthew Kuehnert, Pallavi Annambhotla, Sridhar V Basavaraju, Ingrid B Rabe
BACKGROUND: St. Louis encephalitis virus is a mosquito-borne flavivirus that infrequently causes epidemic central nervous system infections. In the United States, blood donors are not screened for St. Louis encephalitis virus infection, and transmission through blood transfusion has not been reported. During September 2015, St. Louis encephalitis virus infection was confirmed in an Arizona kidney transplant recipient. An investigation was initiated to determine the infection source. STUDY DESIGN AND METHODS: The patient was interviewed, and medical records were reviewed...
September 14, 2017: Transfusion
https://www.readbyqxmd.com/read/28902289/exposure-source-prevalence-is-associated-with-gender-in-hepatitis-c-virus-patients-from-rio-de-janeiro-brazil
#5
Daniele Blasquez Olmedo, Patrícia Marraccini Precioso, António Lugdero-Correia, Guida da Silva, Angela Maria Guimarães Dos Santos, Luís Cristóvão Pôrto
BACKGROUND: Hepatitis C virus (HCV) infection is a worldwide public health problem. A characterisation of the differences in exposure sources among genders will enable improvements in surveillance actions. METHODS: Exposure data were obtained for 1180 confirmed HCV cases Brazil's mandatory reporting to epidemiological surveillance, which was directed by a reference laboratory in Rio de Janeiro, Brazil. The Chi-square test (χ2) was used to assess the associations between exposure sources and gender...
September 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28893652/a-new-threat-to-human-reproduction-system-posed-by-zika-virus-zikv-from-clinical-investigations-to-experimental-studies
#6
REVIEW
Xiangdong Li, Wenqiang Ma, Gary Wong, Shuoqian Ma, Shihua Li, Yuhai Bi, George F Gao
Zika virus (ZIKV) was first isolated in 1947 from a rhesus monkey in the Zika forest of Uganda. ZIKV has since been silently circulating in a number of equatorial countries for over 50 years. The largest outbreak in humans occurred in Brazil in 2015-2016. Unlike its flavivirus relatives, sexual and post-transfusion transmissions of ZIKV have been reported. In addition, fetal infection can result in microcephaly and congenital Zikv syndrome has been reported in neonates. Moreover, ZIKV RNA can persist for at least 6 months in semen and 11 weeks in vaginal secretions after the infection, suggesting potential tropism for the male and female genital tracts...
September 8, 2017: Virus Research
https://www.readbyqxmd.com/read/28876496/seroprevalence-and-incidence-of-hepatitis-e-virus-among-blood-donors-a-review
#7
REVIEW
Duaa W Al-Sadeq, Amin F Majdalawieh, Gheyath K Nasrallah
Hepatitis E virus (HEV) is an RNA virus with 4 main genotypes. HEV-1 and HEV-2 infect solely humans, while HEV-3 and HEV-4 infect humans and various animals such as pigs, deer, and rabbits. HEV-5 and HEV-6 infect mainly wild boar. Recently, new genotypes, known as HEV-7 and HEV-8, were found to infect camels and humans. HEV is globally distributed into different epidemiological patterns based on socioeconomic factors and ecology. Although HEV is mainly transmitted through the fecal-oral route, it was also recognized as a transfusion-transmitted virus...
September 6, 2017: Reviews in Medical Virology
https://www.readbyqxmd.com/read/28872685/inactivation-of-babesia-microti-in-red-blood-cells-and-platelet-concentrates
#8
Laura Tonnetti, Andrew Laughhunn, Aaron M Thorp, Irina Vasilyeva, Kent Dupuis, Adonis Stassinopoulos, Susan L Stramer
BACKGROUND: With an increasing number of recognized transfusion-transmitted (TT) babesiosis cases, Babesia microti is the most frequently TT parasite in the United States. We evaluated the inactivation of B. microti in red blood cells (RBCs) prepared in Optisol (AS-5) using amustaline and glutathione (GSH) and in platelet components (PCs) in 100% plasma using amotosalen and low-energy ultraviolet A (UVA) light. STUDY DESIGN AND METHODS: Individual RBCs and apheresis PCs were spiked with B...
September 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28867401/outbreak-of-human-malaria-caused-by-plasmodium-simium-in-the-atlantic-forest-in-rio-de-janeiro-a-molecular-epidemiological-investigation
#9
Patrícia Brasil, Mariano Gustavo Zalis, Anielle de Pina-Costa, Andre Machado Siqueira, Cesare Bianco Júnior, Sidnei Silva, André Luiz Lisboa Areas, Marcelo Pelajo-Machado, Denise Anete Madureira de Alvarenga, Ana Carolina Faria da Silva Santelli, Hermano Gomes Albuquerque, Pedro Cravo, Filipe Vieira Santos de Abreu, Cassio Leonel Peterka, Graziela Maria Zanini, Martha Cecilia Suárez Mutis, Alcides Pissinatti, Ricardo Lourenço-de-Oliveira, Cristiana Ferreira Alves de Brito, Maria de Fátima Ferreira-da-Cruz, Richard Culleton, Cláudio Tadeu Daniel-Ribeiro
BACKGROUND: Malaria was eliminated from southern and southeastern Brazil over 50 years ago. However, an increasing number of autochthonous episodes attributed to Plasmodium vivax have recently been reported from the Atlantic Forest region of Rio de Janeiro state. As the P vivax-like non-human primate malaria parasite species Plasmodium simium is locally enzootic, we performed a molecular epidemiological investigation to determine whether zoonotic malaria transmission is occurring. METHODS: We examined blood samples from patients presenting with signs or symptoms suggestive of malaria as well as from local howler monkeys by microscopy and PCR...
August 31, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28840782/comparison-of-three-blood-transfusion-guidelines-applied-to-31-feline-donors-to-minimise-the-risk-of-transfusion-transmissible-infections
#10
Maria Luisa Marenzoni, Stefania Lauzi, Arianna Miglio, Mauro Coletti, Andrea Arbia, Saverio Paltrinieri, Maria Teresa Antognoni
Objectives The increased demand for animal blood transfusions creates the need for an adequate number of donors. At the same time, a high level of blood safety must be guaranteed and different guidelines (GLs) deal with this topic. The aim of this study was to evaluate the appropriateness of different GLs in preventing transfusion-transmissible infections (TTI) in Italian feline blood donors. Methods Blood samples were collected from 31 cats enrolled as blood donors by the owners' voluntary choice over a period of approximately 1 year...
August 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28838856/blood-transfusion-in-burn-patients-triggers-of-transfusion-in-a-referral-burn-center-in-iran
#11
S H Tavousi, A Ahmadabadi, A Sedaghat, M Khadem-Rezaiyan, Z Yaghoubi Moghaddam, M J Behrouzian, S Nemati, H Saghafi
OBJECTIVES: Blood and its derivatives are one of the most lifesaving products in the modern medicine practice. However, it is not an absolutely safe prescription. Many adverse effects such as infection, transfusion-related acute lung injury, immunosuppression, multi-organ dysfunction, acute respiratory syndrome, transfusion errors, transmission of infectious agents such as HIV, HBV, HCV are attributable to blood transfusion. The aim of this study was to describe how and when blood products were transfused in a referral burn center...
August 21, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28838665/infectious-and-sporadic-prion-diseases
#12
Richard Knight
Prion diseases are progressive fatal encephalopathies characterized by a neurodegenerative pathology, the tissue deposition of abnormally folded prion protein and, in general, potential transmissibility. Creutzfeldt-Jakob disease (CJD) is the commonest human prion disease and occurs in three principal forms: sporadic (idiopathic), acquired (infectious), and inherited (genetic). This chapter concerns the sporadic and acquired forms. Sporadic CJD occurs worldwide and affects mainly the middle aged and elderly...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/28833229/hepatitis-e-virus-rna-in-australian-blood-donors-prevalence-and-risk-assessment
#13
V C Hoad, C R Seed, J J Fryk, R Harley, R L P Flower, B M Hogema, P Kiely, H M Faddy
BACKGROUND AND OBJECTIVES: Hepatitis E virus (HEV) is a known transfusion-transmissible agent. HEV infection has increased in prevalence in many developed nations with RNA detection in donors as high as 1 in 600. A high proportion of HEV infections are asymptomatic and therefore not interdicted by donor exclusion criteria. To manage the HEV transfusion-transmission (TT) risk some developed nations have implemented HEV RNA screening. In Australia, HEV is rarely notified; although locally acquired infections have been reported, and the burden of disease is unknown...
August 18, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28811781/screening-of-adult-dental-patients-visiting-khyber-college-of-dentistry-peshawar-for-hbv-and-hcv-infections-and-identifying-the-associated-risk-factors
#14
Jamila Haider, Ghosia Lufullah, Rubina Nazli, Tasleem Akhtar, Asma Shah
OBJECTIVE: To screen out adult patients for HBV and HCV infections visiting Khyber College of Dentistry Peshawar (KCD) for different dental treatments and to identify the associated risk factors. METHOD: This cross-sectional study was conducted at Khyber College of Dentistry, Peshawar in the year 2013. A total of 1540 patients >15 years, visiting KCD for seeking different dental treatments were screened for hepatitis B & C. Informed consent was taken before blood collection and filling of a structured questionnaire...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28801405/prevalence-of-hepatitis-c-virus-infection-and-its-correlates-in-a-rural-area-of-southwestern-china-a-community-based-cross-sectional-study
#15
Wanting Cheng, Ya Yang, Yibiao Zhou, Penglei Xiao, Yan Shi, Jianchuan Gao, Yue Chen, Song Liang, Wuli Yihuo, Xiuxia Song, Qingwu Jiang
OBJECTIVES: Hepatitis C virus (HCV) infection is a major public health problem in southwestern China. Our aim of the study was to assess the prevalence of HCV infection and its correlates in the Yi population of this region. METHODS: A community-based survey was conducted to investigate sociodemographic characteristics and other associated factors for HCV infection in a rural area of southwestern China. Blood samples were collected and tested for antibodies to HCV...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28797275/sero-prevalence-of-hepatitis-b-infection-among-blood-donors-in-a-secondary-care-hospital-ghana-2014-a-retrospective-analysis
#16
Eric Osei, Sylvester Yao Lokpo, Eric Agboli
BACKGROUND: The prevalence of transfusion associated hepatitis B virus infection varies across different geographical populations. Establishing the sero-prevalence of the disease is important to informing the direction of preventive and control strategies. We sought to estimate the sero-prevalence of hepatitis B surface antigen among blood donors in Ho Municipal Hospital, Ghana. METHODS: This was a retrospective study which involved reviewing of blood donation records for the year 2014 in Ho Municipal Hospital...
August 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28767979/risk-factors-for-hepatitis-b-transmission-in-south-brazil
#17
Vagner Reinaldo Zingalli Bueno Pereira, Jonas Michel Wolf, Camila Albani da Silva Luz, Gláucia Zuleide Stumm, Thais da Rocha Boeira, Josiane Galvan, Daniel Simon, Vagner Ricardo Lunge
BACKGROUND: Hepatitis B virus (HBV) infection is a major public health problem in Brazil. Several risk factors are involved in HBV infection and their identification by a rational and essential approach is required to prevent the transmission of this infection in Brazil. OBJECTIVES: To evaluate risk factors associated with HBV infection in South Brazil. METHODS: A total of 260 patients with HBV and 260 controls from Caxias do Sul (state of Rio Grande do Sul, Brazil) participated in this study...
August 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28756627/pathogen-reduced-platelets-for-the-prevention-of-bleeding
#18
REVIEW
Lise J Estcourt, Reem Malouf, Sally Hopewell, Marialena Trivella, Carolyn Doree, Simon J Stanworth, Michael F Murphy
BACKGROUND: Platelet transfusions are used to prevent and treat bleeding in people who are thrombocytopenic. Despite improvements in donor screening and laboratory testing, a small risk of viral, bacterial, or protozoal contamination of platelets remains. There is also an ongoing risk from newly emerging blood transfusion-transmitted infections for which laboratory tests may not be available at the time of initial outbreak.One solution to reduce the risk of blood transfusion-transmitted infections from platelet transfusion is photochemical pathogen reduction, in which pathogens are either inactivated or significantly depleted in number, thereby reducing the chance of transmission...
July 30, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28724447/blood-donation-practice-and-its-associated-factors-among-health-professionals-of-university-of-gondar-hospital-northwest-ethiopia-a-cross-sectional-study
#19
Getachew Arage, Seada Ibrahim, Endeshaw Adimasu
BACKGROUND: Blood donation has remained a challenge in developing countries, like Ethiopia. In Ethiopia there is a high reliance on family surrogate and waged blood donors which carries an attendant increased risk of transfusion transmissible infection. Health workers are expected to practice blood donation so as to create a good image to the public. A study on blood donation behavior may improve successful implementation of the blood donation programs. METHODS: An institution based cross-sectional study was deployed from January to June 2015...
July 19, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28718518/reduction-of-zika-virus-infectivity-in-platelet-concentrates-after-treatment-with-ultraviolet-c-light-and-in-plasma-after-treatment-with-methylene-blue-and-visible-light
#20
Jesse J Fryk, Denese C Marks, Jody Hobson-Peters, Daniel Watterson, Roy A Hall, Paul R Young, Stefan Reichenberg, Frank Tolksdorf, Chryslain Sumian, Ute Gravemann, Axel Seltsam, Helen M Faddy
BACKGROUND: Zika virus (ZIKV) has emerged as a potential threat to transfusion safety worldwide. Pathogen inactivation is one approach to manage this risk. In this study, the efficacy of the THERAFLEX UV-Platelets system and THERAFLEX MB-Plasma system to inactivate ZIKV in platelet concentrates (PCs) and plasma was investigated. STUDY DESIGN AND METHODS: PCs spiked with ZIKV were treated with the THERAFLEX UV-Platelets system at 0.05, 0.10, 0.15, and 0.20 J/cm(2) UVC...
July 17, 2017: Transfusion
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