نتایج جستجو برای: asymptomatic infections
تعداد نتایج: 325330 فیلتر نتایج به سال:
Staphylococcus aureus produces a particular morphological variant called small colony variant (SCV) which is responsible for persistent subclinical infections in predisposed individuals and is usually resistant to aminoglycosides and cell wall active antibiotics. Infections by SCV of S. aureus are an upcoming problem due to difficulty in laboratory diagnosis and resistance to antimicrobial chem...
Introduction: Strongyloidiasis can vary from asymptomatic infection to life-threatening multisystem disease especially in immunocompromised patients. Although strongyloidiasis is a rare diagnosis in USA, transmission through immigrants and refugees obscured the geographical boundary. The clinical presentations vary widely depending on underlying comorbidities and immuno-
In the Americas there are between 4,500 and 6,800 annual cases of severe visceral leishmaniasis, and mortality is estimated to range between 7 and 10%. However, underreporting and subclinical infections mask the real epidemiological importance of visceral leishmaniasis. Control efforts, which have typically focused on insecticide spraying of sand fly vectors and dog culling, have yielded dispar...
This study aimed to evaluate the prevalence of serum IgG dengue in children in an Amazonian population, to assess the seroconversion rate in 12 months, and to estimate how many seropositive children had a prior clinical diagnosis of dengue. We conducted a population-based study between 2010 and 2011, with children aged 6 months to 12 years that were living in the urban area of a small town in t...
BACKGROUND The newly recognized endemic focus of leishmaniasis in Satluj river valley of Himachal Pradesh (India) has both localized cutaneous leishmaniasis (LCL) and visceral leishmaniasis (VL) predominantly caused by Leishmania donovani. Rapid rK39 immunochromatographic dipstick test detects circulating antibodies to recombinant K39 antigen of L. donovani-infantum complex and is highly specif...
Laboratory-confirmed cases of subclinical infection with avian influenza A(H5N1) virus in humans are rare, and the true number of these cases is unknown. We describe the identification of a laboratory-confirmed subclinical case in a woman during an influenza A(H5N1) contact investigation in northern Vietnam.
Whether the number of concurrent clones in asymptomatic Plasmodium falciparum infections reflects the degree of host protection was investigated in children living in areas with different levels of transmission on the coast of Kenya. The number of concurrent clones was determined on the basis of polymorphism in msp2, which encodes the vaccine candidate antigen merozoite surface protein 2. In a ...
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