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https://www.readbyqxmd.com/read/27915106/insights-gained-from-ancient-biomolecules-into-past-and-present-tuberculosis-a-personal-perspective
#1
REVIEW
Helen D Donoghue
Ancient and historical tuberculosis (TB) can be recognized by its typical paleopathology in human remains. Using paleomicrobiology, it is possible to detect many more individuals infected with TB but with no visible lesions. Due to advances in molecular analysis over the past two decades, it is clear that TB was widespread in humans from the Neolithic period until the present day. Past human populations were associated with different lineages of the Mycobacterium tuberculosis (MTB) complex, thereby elucidating early human migrations...
November 30, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27914930/biological-fitness-and-natural-selection-of-amantadine-resistant-variants-of-avian-influenza-h5n1-viruses
#2
El-Sayed M Abdelwhab, Jutta Veits, Thomas C Mettenleiter
Outbreaks caused by the highly pathogenic H5N1 avian influenza virus (A/H5N1) devastated the poultry industry in several countries and posed a significant pandemic threat. In addition to culling of infected poultry and vaccination, amantadine has been applied in poultry in some countries to control the spread of the virus. The prevalence of the amantadine resistance marker at position 31 (Ser31Asn) of the M2 protein increased over time. However, little is known about the biological fitness and selection of H5N1 amantadine resistant strains over their sensitive counterparts...
November 30, 2016: Virus Research
https://www.readbyqxmd.com/read/27914475/an-observational-study-of-febrile-seizures-the-importance-of-viral-infection-and-immunization
#3
Joshua R Francis, Peter Richmond, Christine Robins, Katie Lindsay, Avram Levy, Paul V Effler, Meredith Borland, Christopher C Blyth
BACKGROUND: Febrile seizures are common in young children. Annual peaks in incidence mirror increased respiratory virus activity during winter. Limited virological data are available using modern diagnostic techniques for children with febrile seizures. We aimed to determine the frequency of detection of specific viral pathogens in children with febrile seizures, to describe risk factors including recent vaccination and clinical features associated with specific etiologies. METHODS: An observational study was performed...
December 3, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27912790/fetal-malformation-in-maternal-toxoplasma-and-rubella-co-infection-in-cameroon-a-case-report
#4
Andreas Ateke Njoh, Sarah Namondo Njoh, Messang Blandine Abizou
BACKGROUND: There has been a recent increase in the number of newborns with brain malformations due to congenital infections, but the impact of these diseases remains largely under ascertained in middle-income and low-income countries. This case report presents a fetal anencephaly following maternal toxoplasma and rubella co-infection in a resource-limited setting and the challenges faced by the patient and the health care provider in the management of the condition. CASE PRESENTATION: A 25-year-old black Cameroonian woman of Bakossi origin, gravida3 para1010, presented with a positive rubella and toxoplasma immunoglobulin G serologic test at 21 weeks of pregnancy; she could not benefit from a fetal morphologic ultrasound partly because there was none at the site of her antenatal clinic and because there were accessibility constraints getting to the nearest referral hospital approximately 100 km away...
December 3, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27911143/factors-predicting-life-threatening-infections-with-respiratory-syncytial-virus-in-adult-patients
#5
Se Yoon Park, Taeeun Kim, Young Rock Jang, Min-Chul Kim, Yong Pil Chong, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Sung-Han Kim
BACKGROUND: Respiratory syncytial virus (RSV) is a significant cause of acute respiratory illness with a clinical spectrum ranging from self-limiting upper respiratory infection to severe lower respiratory infection in elderly persons as well as young children. However, there are limited data on risk factors for life-threatening infections that could guide the appropriate use of antiviral agents in adult patients with RSV. METHODS: We conducted a retrospective cohort study from October 2013 to September 2015...
December 2, 2016: Infectious Diseases
https://www.readbyqxmd.com/read/27910154/interferon-free-regimens-improve-portal-hypertension-and-histological-necroinflammation-in-hiv-hcv-patients-with-advanced-liver-disease
#6
P Schwabl, M Mandorfer, S Steiner, B Scheiner, D Chromy, M Herac, T Bucsics, H Hayden, K Grabmeier-Pfistershammer, A Ferlitsch, G Oberhuber, M Trauner, M Peck-Radosavljevic, T Reiberger
BACKGROUND: HIV/HCV co-infected patients show accelerated fibrosis progression and higher risk for complications of portal hypertension (PHT). AIM: To assess the effects of interferon-free therapy on portal pressure, liver histology and plasma biomarkers in HIV/HCV-coinfected patients with PHT. METHODS: Twenty-two patients with paired hepatic venous pressure gradient (HVPG) measurements prior and after successful treatment (SVR) with interferon-free regimens were included...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27908771/molecular-detection-and-genetic-characterization-of-babesia-theileria-and-anaplasma-amongst-apparently-healthy-sheep-and-goats-in-the-central-region-of-turkey
#7
Mo Zhou, Shinuo Cao, Ferda Sevinc, Mutlu Sevinc, Onur Ceylan, Sepil Ekici, Charoonluk Jirapattharasate, Paul Franck Adjou Moumouni, Mingming Liu, Guanbo Wang, Aiko Iguchi, Patrick Vudriko, Hiroshi Suzuki, Xuenan Xuan
Babesia spp., Theileria spp. and Anaplasma spp. are significant tick-borne pathogens of livestock globally. In this study, we investigated the presence and distribution of Babesia ovis, Theileria ovis and Anaplasma ovis in 343 small ruminants (249 sheep and 94 goats) from 13 towns in the Central Anatolia region of Turkey using species-specific PCR assays. The PCR were conducted using the primers based on the B. ovis ssu rRNA (BoSSUrRNA), T. ovis ssu rRNA (ToSSUrRNA) and A. ovis major surface protein 4 (AoMSP4) genes, respectively...
November 16, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27907884/factors-determining-human-to-human-transmissibility-of-zoonotic-pathogens-via-contact
#8
REVIEW
Mathilde Richard, Sascha Knauf, Philip Lawrence, Alison E Mather, Vincent J Munster, Marcel A Müller, Derek Smith, Thijs Kuiken
The pandemic potential of zoonotic pathogens lies in their ability to become efficiently transmissible amongst humans. Here, we focus on contact-transmitted pathogens and discuss the factors, at the pathogen, host and environmental levels that promote or hinder their human-to-human transmissibility via the following modes of contact transmission: skin contact, sexual contact, respiratory contact and multiple route contact. Factors common to several modes of transmission were immune evasion, high viral load, low infectious dose, crowding, promiscuity, and co-infections; other factors were specific for a pathogen or mode of contact transmission...
November 28, 2016: Current Opinion in Virology
https://www.readbyqxmd.com/read/27907010/viral-metagenomic-analysis-displays-the-co-infection-situation-in-healthy-and-pmws-affected-pigs
#9
Anne-Lie Blomström, Caroline Fossum, Per Wallgren, Mikael Berg
The development of high-throughput sequencing technologies have allowed the possibility to investigate and characterise the entire microbiome of individuals, providing better insight to the complex interaction between different microorganisms. This will help to understand how the microbiome influence the susceptibility of secondary agents and development of disease. We have applied viral metagenomics to investigate the virome of lymph nodes from Swedish pigs suffering from the multifactorial disease postweaning multisystemic wasting syndrome (PMWS) as well as from healthy pigs...
2016: PloS One
https://www.readbyqxmd.com/read/27906982/using-community-level-prevalence-of-loa-loa-infection-to-predict-the-proportion-of-highly-infected-individuals-statistical-modelling-to-support-lymphatic-filariasis-and-onchocerciasis-elimination-programs
#10
Daniela K Schlüter, Martial L Ndeffo-Mbah, Innocent Takougang, Tony Ukety, Samuel Wanji, Alison P Galvani, Peter J Diggle
Lymphatic Filariasis and Onchocerciasis (river blindness) constitute pressing public health issues in tropical regions. Global elimination programs, involving mass drug administration (MDA), have been launched by the World Health Organisation. Although the drugs used are generally well tolerated, individuals who are highly co-infected with Loa loa are at risk of experiencing serious adverse events. Highly infected individuals are more likely to be found in communities with high prevalence. An understanding of the relationship between individual infection and population-level prevalence can therefore inform decisions on whether MDA can be safely administered in an endemic community...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906005/the-role-of-nk-cells-in-hiv-1-protection-autologous-allogeneic-or-both
#11
REVIEW
Jef Hens, Wim Jennes, Luc Kestens
Natural killer (NK) cells specialize in killing virally infected- or tumor cells and are part of the innate immune system. The activational state of NK cells is determined by the balance of incoming activating and inhibitory signals mediated by receptor-ligand binding with the target cell. These receptor-ligand bonds mainly consist of the killer immunoglobulin-like receptors (KIR), which are expressed at the cell surface of NK cells, and their ligands: the highly variable human leukocyte antigen -class I molecules (HLA)...
March 18, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27905632/-co-infection-by-chikungunya-virus-chik-v-and-dengue-virus-den-v-during-a-recent-outbreak-in-cali-colombia-report-of-a-fatal-case
#12
Fernando Rosso, Robinson Pacheco, Sarita Rodríguez, Diego Bautista
The recent outbreaks of Chikungunya (CHIK-V) virus in endemic areas of dengue (DEN-V) could increase the risk of co-infection. CHIK infection has been considered not severe and with very unusual mortality, however DEN is associated with severe manifestations and increased mortality. Little is known about coinfection. It is possible that co-infection could generate severe cases. We present a case report of co-infection DEN-V -3 and CHIK-V in an elderly patient who developed acute renal failure, dengue shock syndrome (DSS), progresses to multiple organ failure and died...
August 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/27903355/-factors-associated-with-commercial-sexual-behavior-among-men-who-have-sex-with-men-in-shenzhen-china-in-2011-2015
#13
Y M Cai, Y J Song, H Liu, F C Hong
Objective: To investigate the status and factors associated with commercial sexual behavior among men who have sex with men (MSM) in Shenzhen. Methods: A convenience sampling method was used to recruit MSM in Shenzhen from 2011 to 2015. Questionnaire-based interviews were conducted on a one-on-one basis. Data were collected, including socio-demographic information, HIV testing history, history of blood donation and drug abuse in the last 2 years, self-reported sexual orientation, role in homosexual behavior, and experience serving as a male sex worker and/or as a client of male sex workers...
November 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/27903308/joint-spatial-time-series-epidemiological-analysis-of-malaria-and-cutaneous-leishmaniasis-infection
#14
O A Adegboye, M Al-Saghir, D H Y Leung
Malaria and leishmaniasis are among the two most important health problems of many developing countries especially in the Middle East and North Africa. It is common for vector-borne infectious diseases to have similar hotspots which may be attributed to the overlapping ecological distribution of the vector. Hotspot analyses were conducted to simultaneously detect the location of local hotspots and test their statistical significance. Spatial scan statistics were used to detect and test hotspots of malaria and cutaneous leishmaniasis (CL) in Afghanistan in 2009...
December 1, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27903301/high-prevalence-of-strongyloides-stercoralis-in-school-aged-children-in-a-rural-highland-of-north-western-ethiopia-the-role-of-intensive-diagnostic-work-up
#15
Aranzazu Amor, Esperanza Rodriguez, José M Saugar, Ana Arroyo, Beatriz López-Quintana, Bayeh Abera, Mulat Yimer, Endalew Yizengaw, Derejew Zewdie, Zimman Ayehubizu, Tadesse Hailu, Wondemagegn Mulu, Adriana Echazú, Alejandro J Krolewieki, Pilar Aparicio, Zaida Herrador, Melaku Anegagrie, Agustín Benito
BACKGROUND: Soil-transmitted helminthiases (hookworms, Ascaris lumbricoides and Trichuris trichiura) are extremely prevalent in school-aged children living in poor sanitary conditions. Recent epidemiological data suggest that Strongyloides stercoralis is highly unreported. However, accurate data are essential for conducting interventions aimed at introducing control and elimination programmes. METHODS: We conducted a cross-sectional survey of 396 randomly selected school-aged children in Amhara region in rural area in north-western Ethiopia, to assess the prevalence of S...
December 1, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27902382/the-genetic-diversity-and-phenotypic-associations-of-feline-caliciviruses-from-cats-in-switzerland
#16
Andrea M Spiri, Julien Thézé, Marina L Meli, Valentino Cattori, Alice Berger, Adolf Steinrigl, Oliver G Pybus, Regina Hofmann-Lehmann, Barbara Willi
Feline calicivirus (FCV) is a common viral pathogen in domestic cats worldwide. The variable regions of the capsid (VP1) gene of FCV have one of the highest recorded rates of molecular evolution. Understanding the genetic diversity and phylogeny of FCV is a prerequisite to exploring the epidemiology and pathogenesis of this virus and to the development of efficacious vaccine strategies. In this study, we undertook a nationwide molecular characterization of FCV using for the first time nearly complete capsid (VP1) gene sequences...
October 7, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27900587/phylogenetic-analysis-of-wheat-dwarf-virus-isolates-from-iran
#17
Mohamad Hamed Ghodoum Parizipour, Jörg Schubert, Seyed Ali Akbar Behjatnia, Alireza Afsharifar, Antje Habekuß, Beilei Wu
Wheat dwarf virus (WDV) adversely affects cereal production in Asia, Europe, and North Africa. In this study, sequences of several WDV isolates from Iran which is located in the Fertile Crescent were analyzed. Analysis revealed a new geographic cluster for WDV-Wheat from Iran. Recombination analysis demonstrated the existence of several breakpoints in different regions of the viral genome. Data analysis demonstrated that WDV-Barley has an older history and lower diversity than WDV-Wheat. Sequence analysis identified a rare occasion of a co-infection of wheat with WDV-Wheat and WDV-Barley...
November 30, 2016: Virus Genes
https://www.readbyqxmd.com/read/27899306/molecular-characterization-of-chicken-anemia-virus-outbreaks-in-nagpur-province-india-from-2012-2015
#18
Ketan Ganar, Manisha Shah, Bhupesh P Kamdi, Nitin Vasantrao Kurkure, Sachin Kumar
Chicken anemia virus (CAV) is one of the important poultry pathogen. CAV infection can cause immunosuppression, aggravation of co-infections, vaccination failures and mortality. We are reporting the CAV outbreaks from the Nagpur province of India, between the years 2012-2015. The breed included cockerel and Black Australorp of age varying from 29 to 50 days. The mortality rate observed among poultry was from 20% to 62.5%. Clinical symptoms like anemia, subcutaneous hemorrhages, growth retardation, abnormal feathers and hind limb paralysis suggested CAV infection...
November 26, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27899288/one-step-reverse-transcription-loop-mediated-isothermal-amplification-for-the-detection-of-maize-chlorotic-mottle-virus-in-maize
#19
Ling Chen, Zhiyuan Jiao, Dongmei Liu, Xingliang Liu, Zihao Xia, Congliang Deng, Tao Zhou, Zaifeng Fan
Maize chlorotic mottle virus (MCMV) is spreading in many regions worldwide, causing maize lethal necrosis when co-infected with a potyvirid. In this study, one-step reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed to detect MCMV in maize. A set of four specific primers was designed based on the conserved coat protein gene sequences of MCMV. The RT-LAMP could be completed within 60min under isothermal condition at 63°C. The sensitivity test showed that the RT-LAMP was about 10-fold more sensitive than RT-PCR and no cross-reactivity was detected with other viral pathogens infecting maize in China...
November 26, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/27898593/coinfection-with-hiv-and-hepatitis-c-virus-in-229-children-and-young-adults-living-in-europe
#20
(no author information available yet)
OBJECTIVE: To characterize children, adolescents and young adults infected with HIV/hepatitis C virus (HCV) vertically or before age of 18 years and living in Europe regarding mode of acquisition, HCV genotype, clinical status and treatment. DESIGN: Retrospective, cross-sectional study using pooled data from 11 European paediatric HIV cohorts. METHODS: Patients aged more than 18 months and less than 25 years, with HIV/HCV acquired vertically or in childhood, were included...
January 2, 2017: AIDS
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