Publications by authors named "Laura Nabarro"

Eosinophilia is a common finding in returning travellers, migrants and other travelling groups. In this setting it often indicates an underlying helminth infection. Infections associated with eosinophilia are frequently either asymptomatic or associated with non-specific symptoms but some can cause severe disease.

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We describe a case of autochthonous human Babesia divergens infection in an immunocompetent woman in England. The patient had fever, hemolysis, multiorgan failure, and 18% parasitemia. We confirmed B.

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Parasitic infections and the medications used to treat them may be unfamiliar to many paediatricians. Parasitic infections, however, are not uncommonly seen in children in the UK. We summarise infections which are commonly seen, currently recommended treatment and practical guidance on formulations, adverse effects and treatment choice.

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Background: Recent cases of clinical failure in malaria patients in the United Kingdom (UK) treated with artemether-lumefantrine have implications for malaria chemotherapy worldwide.

Methods: Parasites were isolated from an index case of confirmed Plasmodium falciparum treatment failure after standard treatment, and from comparable travel-acquired UK malaria cases. Drug susceptibility in vitro and genotypes at 6 resistance-associated loci were determined for all parasite isolates and compared with clinical outcomes for each parasite donor.

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Objective: The burden of imported rickettsial infection in the UK is not previously described. This retrospective review identifies rickettsial cases diagnosed at the national reference laboratory between 2015 and 2022.

Methods: Samples testing positive for spotted fever group, typhus group, and scrub typhus IgG/IgM on acute and convalescent blood samples, and/or PCR on tissue/blood were categorized as suspected, confirmed or past infection.

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Article Synopsis
  • In England, between 2018 and 2019, there were 10 outbreaks of invasive group A Streptococcus (iGAS) associated with home healthcare, leading to 96 cases and 28 deaths, which is a case-fatality rate of 29%.
  • Detecting these outbreaks was challenging, but using techniques like emm typing and whole-genome sequencing helped improve identification of cases, revealing multiple transmission routes.
  • Effective outbreak control necessitated various strategies, including better infection control practices and antimicrobial prophylaxis for staff, though many routes of transmission and the best interventions remain unclear, highlighting the need for greater awareness from public health agencies.
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  • There is a growing incidence of infections caused by carbapenem-resistant K. pneumoniae, which are linked to high mortality rates, particularly in India.
  • 31.3% of the studied K. pneumoniae isolates showed hypermucoviscous characteristics, with a significant correlation between the hypermucoviscous phenotype and elevated mortality rates.
  • The findings highlight that a combination of string-test positivity and high meropenem minimum inhibitory concentrations (≥16µg/ml) is associated with a very high mortality rate of 84.2%, underscoring the need for close monitoring and effective treatment strategies.
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Intracranial echinococcosis is relatively uncommon and usually occurs in the context of echinococcal lesions elsewhere in the body, mostly liver and lung. Multiple intracranial lesions can result from rupture of an initial single intracranial cyst (in cystic echinococcosis) or from dissemination of systemic disease of the lung, liver or heart (cystic and alveolar echinococcosis). The two main subtypes, cystic and alveolar echinococcosis, present differently and have distinct imaging features in the brain.

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  • Hypervirulent Klebsiella pneumoniae (hvKp) causes serious infections in Asia and this study investigates its presence and characteristics in India, focusing on virulence and resistance genes among bacteraemic patients.
  • Seven hvKp isolates were found to be susceptible to key antibiotics and confirmed to possess specific virulence genes, with distinct differences in clinical outcomes between healthcare-associated and community-acquired infections.
  • This research highlights the first whole genome analysis of hvKp in India, revealing novel sequence types and suggesting that these strains are evolving within the region.
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Background: Elderly patients have a long list of differentials for causes of acute confusion and altered consciousness levels, including infectious agents. In addition, elderly, retired patients often have more time to travel for tourism, particularly to exotic, warmer locations. Mediterranean countries such as Spain and Italy are popular holiday destinations for British and other tourists, especially during the winter months.

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The incidence of invasive Staphylococcus aureus (SA) infection has increased in the past decade and is associated with poor outcomes and high mortality rates. Of all the virulence factors, Panton-Valentine Leukocidin (PVL) has received the greatest attention. PVL producing SA strains are more likely to produce severe skin and soft tissue infections (SSTIs) and necrotizing pneumonia.

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The dissemination of methicillin-resistant (MR) (SA) in community and health-care settings is of great concern and associated with high mortality and morbidity. Rapid detection of MRSA with short turnaround time can minimize the time to initiate appropriate therapy and further promote infection control. Early detection of MRSA directly from clinical samples is complicated by the frequent association of MRSA with methicillin-susceptible SA (MSSA) and coagulase-negative (CoNS) species.

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Colistin has long been a reserve drug used for the treatment of carbapenem resistant . Carbapenem resistance in has been increasing and is as high as 44% in India. Although a reserve agent, with rise in rates of resistance to carbapenems, the usage of colistin has increased over the years leading to slow emergence of resistance.

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Background: Carbapenem-resistant Enterobacteriaceae (CRE) are an increasing cause of nosocomial infection in hospitalized children worldwide. Few studies have investigated risk factors for mortality in children with CRE bloodstream infection (BSI). Data are particularly scarce in areas where NDM and OXA carbapenemases predominate.

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Hypervirulent Klebsiella pneumoniae strains have been increasingly reported worldwide, and there is emergence of carbapenem resistance among them. Here, we report the genome sequences of three carbapenem-resistant hypervirulent K. pneumoniae isolates isolated from bacteremic patients at a tertiary-care center in South India.

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Carbapenem-resistant organisms are increasingly common worldwide, particularly in India and are associated with high mortality rates especially in patients with severe infection such as bacteremia. Existing drugs such as carbapenems and polymyxins have a number of disadvantages, but remain the mainstay of treatment. The tetracycline class of antibiotics was first produced in the 1940s.

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Article Synopsis
  • * A worldwide survey of clinicians managing CE revealed significant variations in treatment practices, with many common methods being outdated or even unsafe.
  • * There is a need for more research and randomized controlled trials to create evidence-based guidelines for CE management, as well as to understand why clinicians often do not adhere to existing WHO recommendations.
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