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https://www.readbyqxmd.com/read/28820694/differential-neurovirulence-of-african-and-asian-genotype-zika-virus-isolates-in-outbred-immunocompetent-mice
#1
Nisha K Duggal, Jana M Ritter, Erin M McDonald, Hannah Romo, Farshad Guirakhoo, Brent S Davis, Gwong-Jen J Chang, Aaron C Brault
Although first isolated almost 70 years ago, Zika virus (ZIKV; Flavivirus, Flaviviridae) has only recently been associated with significant outbreaks of disease in humans. Several severe ZIKV disease manifestations have also been recently documented, including fetal malformations, such as microcephaly, and Guillain-Barré syndrome in adults. Although principally transmitted by mosquitoes, sexual transmission of ZIKV has been documented. Recent publications of several interferon receptor knockout mouse models have demonstrated ZIKV-induced disease...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28818105/severe-neutropenia-revealing-a-rare-presentation-of-dengue-fever-a-case-report
#2
J Shourick, A Dinh, M Matt, J Salomon, B Davido
BACKGROUND: Arboviruses are a common cause of fever in the returned traveler often associated with leucopenia, especially lymphopenia and thrombocytopenia. Transient neutropenia has been described in a few cases of arboviruses. However, prolonged and severe neutropenia (<500/mm(3)) has rarely been reported in dengue fever, especially in the returned traveler in Europe. CASE PRESENTATION: A 26-year-old healthy female without any medical past history, flying back from Thailand, presented a transient fever with severe neutropenia (<500/mm(3))...
August 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28818049/post-treatment-haemolysis-in-african-children-with-hyperparasitaemic-falciparum-malaria-a-randomized-comparison-of-artesunate-and-quinine
#3
C Fanello, M Onyamboko, S J Lee, C Woodrow, S Setaphan, K Chotivanich, P Buffet, S Jauréguiberry, K Rockett, K Stepniewska, N P J Day, N J White, A M Dondorp
BACKGROUND: Parenteral artesunate is the treatment of choice for severe malaria. Recently, haemolytic anaemia occurring 1 to 3 weeks after artesunate treatment of falciparum malaria has been reported in returning travellers in temperate countries. METHODS: To assess these potential safety concerns in African children, in whom most deaths from malaria occur, an open-labelled, randomized controlled trial was conducted in Kinshasa, Democratic Republic of Congo. 217 children aged between 6 months and 14 years with acute uncomplicated falciparum malaria and parasite densities over 100,000/μL were randomly allocated to intravenous artesunate or quinine, hospitalized for 3 days and then followed for 42 days...
August 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28815213/identification-of-rab18-as-an-essential-host-factor-for-bk-polyomavirus-infection-using-a-whole-genome-rna-interference-screen
#4
Linbo Zhao, Michael J Imperiale
BK polyomavirus (BKPyV) is a human pathogen first isolated in 1971. BKPyV infection is ubiquitous in the human population, with over 80% of adults worldwide being seropositive for BKPyV. BKPyV infection is usually asymptomatic; however, BKPyV reactivation in immunosuppressed transplant patients causes two diseases, polyomavirus-associated nephropathy and hemorrhagic cystitis. To establish a successful infection in host cells, BKPyV must travel in retrograde transport vesicles to reach the nucleus. To make this happen, BKPyV requires the cooperation of host cell proteins...
July 2017: MSphere
https://www.readbyqxmd.com/read/28807292/development-of-a-bead-agglutination-assay-for-rapid-detection-of-tritrichomonas-foetus
#5
Robert G Schaut, Lynette B Corbeil, Courtney N Blake, Matthew T Brewer
Tritrichomonas foetus is a flagellated protozoan parasite that causes inflammation of the reproductive tract leading to early embryonic death and abortion in cattle, thereby resulting in significant economic losses. Testing and culling infected bulls is an important strategy for parasite control. Routine testing is mainly limited to bulls that are traveling across state lines or within states that have specific control programs. Both culture and PCR detection methods are available, but they are not typically conducted as part of a yearly breeding soundness program and are not easily conducted in the field...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28804661/imported-asymptomatic-bancroftian-filariasis-discovered-from-a-plasmodium-vivax-infected-patient-a-case-report-from-singapore
#6
Jean-Marc Chavatte, Roland Jureen
Human lymphatic filariasis is a vector-borne disease mainly caused by the parasitic nematode Wuchereria bancrofti and transmitted worldwide within the tropical and subtropical regions. Singapore was once endemic for bancroftian filariasis but recent reports are scarce and the disease is nearly forgotten. The case report presented here reports the incidental hospital laboratory finding of an asymptomatic microfilaremia in a relapsing Plasmodium vivax imported case during a malaria treatment follow-up appointment...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28804515/mmx-%C3%A2-technology-and-its-applications-in-gastrointestinal-diseases
#7
REVIEW
Silvia Nardelli, Laura Francesca Pisani, Gian Eugenio Tontini, Maurizio Vecchi, Luca Pastorelli
The Multimatrix(®) (MMX(®)) preparation MMX(®) is a recently obtained drug formulation developed to facilitate release of high concentrations of active drugs into the colon, with a homogeneous distribution along all colonic segments, particularly the most distal ones; the distal colonic tracts, indeed, are the most difficult to reach in significant amounts when a drug is given orally. The MMX(®) formulation is characterized by a lipophilic matrix dispersed in a hydrophilic structure. Indeed, in the last few years, MMX(®) technology has been widely used in the development of various drugs for the treatment of inflammatory and infectious gastrointestinal diseases localized in the colon...
July 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28800730/genotypes-of-hepatitis-a-virus-in-turkey-first-report-and-clinical-profile-of-children-infected-with-sub-genotypes-ia-and-iiia
#8
Huseyin Yilmaz, Asiye Karakullukcu, Nuri Turan, Utku Y Cizmecigil, Aysun Yilmaz, Ayse A Ozkul, Ozge Aydin, Alper Gunduz, Mahmut Mete, Fadile Y Zeyrek, Taner T Kirazoglu, Juergen A Richt, Bekir Kocazeybek
BACKGROUND: Hepatitis A virus (HAV) is a food and water-borne virus causing clinical (mainly hepatitis) and subclinical disease in humans. It is important to characterize circulating strains of HAV in order to prevent HAV infections using efficacious vaccines. The aim of this study was the detection and characterization of the circulating strains of HAV in Turkey by performing serology, RT-PCR, sequencing and phylogenetic analysis. METHODS: In this study, 355 HAV suspected cases were analysed by ELISA for the presence of antibodies to HAV...
August 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28797325/plasmid-borne-colistin-resistance-gene-mcr-3-in-salmonella-isolates-from-human-infections-denmark-2009-17
#9
Eva Litrup, Kristoffer Kiil, Anette M Hammerum, Louise Roer, Eva M Nielsen, Mia Torpdahl
This report describes one Salmonella isolate harbouring both mcr-1 and mcr-3. We also found nine other Salmonella isolates positive for the plasmid-borne colistin resistance gene, mcr-3. The strains were isolated from patients in Denmark between 2009 and 2017 and five of the patients had travelled to Asia. In addition to mcr-3, all strains were found positive for blaTEM-1, strA, strB, sul2 and tet(A) or tet(B), and most strains were positive for blaCTX-M-55 and qnrS.
August 3, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28797235/polymorphisms-of-plasmodium-falciparum-k13-propeller-gene-among-migrant-workers-returning-to-henan-province-china-from-africa
#10
Chengyun Yang, Hongwei Zhang, Ruimin Zhou, Dan Qian, Ying Liu, Yuling Zhao, Suhua Li, Bianli Xu
BACKGROUND: Henan Province has been in the malaria elimination stage, with all reports of the disease being imported since 2012 and over 90% coming from Africa. Surveillance and population studies are essential for the early detection and subsequent prevention of the spread of drug resistance. The K13-propeller gene was recently identified as a proposed molecular marker of artemisinin (ART) resistance. In this study, we detected mutations of the K13-propeller gene in samples taken from imported malaria cases in Henan Province from 2012 to 2015...
August 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28795266/whole-genome-sequence-analysis-of-zika-virus-amplified-from-urine-of-traveler-from-the-philippines
#11
Se Hun Gu, Dong Hyun Song, Daesang Lee, Jeyoun Jang, Min Young Kim, Jaehun Jung, Koung In Woo, Mirang Kim, Woong Seog, Hong Sang Oh, Byung Seop Choi, Jong-Seong Ahn, Quehn Park, Seong Tae Jeong
Zika virus (ZIKV) (genus Flavivirus, family Flaviviridae) is an emerging pathogen associated with microcephaly and Guillain-Barré syndrome. The rapid spread of ZIKV disease in over 60 countries and the large numbers of travel-associated cases have caused worldwide concern. Thus, intensified surveillance of cases among immigrants and tourists from ZIKV-endemic areas is important for disease control and prevention. In this study, using Next Generation Sequencing, we reported the first whole-genome sequence of ZIKV strain AFMC-U, amplified from the urine of a traveler returning to Korea from the Philippines...
August 9, 2017: Virus Genes
https://www.readbyqxmd.com/read/28795077/sensitive-molecular-diagnostics-for-cutaneous-leishmaniasis
#12
Orli Sagi, Anat Berkowitz, Shlomi Codish, Victor Novack, Aviv Rashti, Fouad Akad, Yonat Shemer-Avni
BACKGROUND: Rapid diagnosis of cutaneous leishmaniasis (CL) and identification of Leishmania species is highly important for the disease management. In Israel, CL is caused mainly by Leishmania major and Leishmania tropica species. METHODS: We established an easy to handle point of care lesion-swabbing, combined with a highly sensitive multiplex real time PCR (multiplex qPCR) for accurate and rapid diagnosis of Leishmania species. RESULTS: Using three probes: one general for: Leishmania species, and two specific for L major, and L tropica, we screened 1783 clinical samples collected during two years...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28794811/a-rare-case-of-schistosomiasis-bilharzia-of-the-bladder-in-a-non-endemic-area
#13
Haresh G Thummar, Hemen I Vithlani, Pokhraj P Suthar, Deepa Regina John, Nisha Thummar, Harendra Chauhan
BACKGROUND: Schistosomiasis or snail fever is an endemic parasitic infection caused by various trematodes of the genus Schistosoma. People acquire the disease through contact with water containing infected snails. It is one of the most widespread human parasitic infections in tropical and subtropical regions of the world such as Africa, South America, the Middle East, Asia and the Caribbean. In 1996, the World Health Organisation estimated that more than 200 million people living in rural areas are affected by this disease...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28780736/vaccinations-for-the-hiv-infected-adult-a-review-of-the-current-recommendations-part-ii
#14
REVIEW
Nancy F Crum-Cianflone, Eva Sullivan
Vaccination is a critical component for ensuring the ongoing health HIV-infected adults. Since this group may have reduced immune responses and shorter durations of protection post-vaccination, HIV-specific guidelines have been published. This review article provides a comprehensive discussion of the current guidelines and evidence-based data for vaccinating HIV-infected adults, including data on dosing schedules, immunogenicity studies, and safety. In the current paper, part II of the review, live vaccines, as well as vaccines for travelers and specific occupational groups, will be discussed...
August 5, 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/28780185/rapidly-growing-mycobacterium-infections-after-cosmetic-surgery-in-medical-tourists-the-bronx-experience-and-a-review-of-the-literature
#15
Lucas R Cusumano, Vivy Tran, Aileen Tlamsa, Philip Chung, Robert Grossberg, Gregory Weston, Uzma N Sarwar
BACKGROUND: Medical tourism is increasingly popular for elective cosmetic surgical procedures. However, medical tourism has been accompanied by reports of post-surgical infections due to rapidly growing mycobacteria (RGM). The authors' experience working with patients with RGM infections who have returned to the USA after traveling abroad for cosmetic surgical procedures is described here. METHODS: Patients who developed RGM infections after undergoing cosmetic surgeries abroad and who presented at the Montefiore Medical Center (Bronx, New York, USA) between August 2015 and June 2016 were identified...
August 2, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28777313/co-infection-of-mosquitoes-with-chikungunya-and-dengue-viruses-reveals-modulation-of-the-replication-of-both-viruses-in-midguts-and-salivary-glands-of-aedes-aegypti-mosquitoes
#16
Alain Le Coupanec, Stéphane Tchankouo-Nguetcheu, Pascal Roux, Huot Khun, Michel Huerre, Ronald Morales-Vargas, Margot Enguehard, Dimitri Lavillette, Dorothée Missé, Valérie Choumet
Arthropod-borne virus (arbovirus) infections cause several emerging and resurgent infectious diseases in humans and animals. Chikungunya-affected areas often overlap with dengue-endemic areas. Concurrent dengue virus (DENV) and chikungunya virus (CHIKV) infections have been detected in travelers returning from regions of endemicity. CHIKV and DENV co-infected Aedes albopictus have also been collected in the vicinity of co-infected human cases, emphasizing the need to study co-infections in mosquitoes. We thus aimed to study the pathogen-pathogen interaction involved in these co-infections in DENV/CHIKV co-infected Aedes aegypti mosquitoes...
August 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28776100/dalbavancin-for-outpatient-parenteral-antimicrobial-therapy-of-skin-and-soft-tissue-infections-in-a%C3%A2-returning-traveller-proposal-for-novel-treatment-indications
#17
Johannes Mischlinger, Heimo Lagler, Nicole Harrison, Michael Ramharter
Skin and soft tissue infections (SSTIs) are among the most common health problems in travellers returning from tropical and subtropical countries. Importantly, the prevalence of Staphylococcus aureus, the most common pathogen for purulent SSTIs, with specific drug resistance, such as methicillin resistant Staphylococcus aureus (MRSA) and those expressing virulence genes, such as Panton-Valentine-leukocidin is higher in tropical regions than in most high resource settings. This poses challenges for the empirical antimicrobial treatment of SSTIs in returning travellers...
August 3, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28774697/emerging-issues-challenges-and-changing-epidemiology-of-fungal-disease-outbreaks
#18
REVIEW
Kaitlin Benedict, Malcolm Richardson, Snigdha Vallabhaneni, Brendan R Jackson, Tom Chiller
Several high-profile outbreaks have drawn attention to invasive fungal infections (IFIs) as an increasingly important public health problem. IFI outbreaks are caused by many different fungal pathogens and are associated with numerous settings and sources. In the community, IFI outbreaks often occur among people without predisposing medical conditions and are frequently precipitated by environmental disruption. Health-care-associated IFI outbreaks have been linked to suboptimal hospital environmental conditions, transmission via health-care workers' hands, contaminated medical products, and transplantation of infected organs...
July 31, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28771581/measuring-distance-through-dense-weighted-networks-the-case-of-hospital-associated-pathogens
#19
Tjibbe Donker, Timo Smieszek, Katherine L Henderson, Alan P Johnson, A Sarah Walker, Julie V Robotham
Hospital networks, formed by patients visiting multiple hospitals, affect the spread of hospital-associated infections, resulting in differences in risks for hospitals depending on their network position. These networks are increasingly used to inform strategies to prevent and control the spread of hospital-associated pathogens. However, many studies only consider patients that are received directly from the initial hospital, without considering the effect of indirect trajectories through the network. We determine the optimal way to measure the distance between hospitals within the network, by reconstructing the English hospital network based on shared patients in 2014-2015, and simulating the spread of a hospital-associated pathogen between hospitals, taking into consideration that each intermediate hospital conveys a delay in the further spread of the pathogen...
August 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28769893/imported-zika-virus-in-a-european-city-how-to-prevent-local-transmission
#20
Joan-Pau Millet, Tomàs Montalvo, Ruben Bueno-Marí, Arancha Romero-Tamarit, Albert Prats-Uribe, Lidia Fernández, Esteve Camprubí, Lucía Del Baño, Victor Peracho, Jordi Figuerola, Elena Sulleiro, Miguel J Martínez, Joan A Caylà
Background: On February 1st 2016 the WHO declared the Zika Virus (ZIKV) infection a worldwide public health emergency because of its rapid expansion and severe complications, such as Guillain-Barré Syndrome or microcephaly in newborn. The huge amount of people traveling to endemic areas and the presence of Aedes albopictus in Barcelona increase the risk of autochtonous transmission. The objective of this study was to describe the first ZIKV cases diagnosed in our city and to analyze the surveillance, prevention, and control measures implemented to avoid autochthonous transmission...
2017: Frontiers in Microbiology
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