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In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.
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Background: Fevers of unknown origin constitute a substantial disease burden in Southeast Asia. In majority of the cases, the cause of acute febrile illness is not identified. Methods: We used MassTag PCR, a multiplex assay platform, to test for the presence of 15 viral respiratory agents from 85 patients with unexplained respiratory illness representing six disease clusters that occurred in Cambodia between 2009 and 2012. Results: We detected a virus in 37 (44%) of the cases. Human rhinovirus, the virus detected most frequently, was found in both children and adults. The viruses most frequently detected in children and adults, respectively, were respiratory syncytial virus and enterovirus 68. Sequence analysis indicated that two distinct clades of enterovirus 68 were circulating during this time period. Conclusions: This is the first report of enterovirus 68 in Cambodia and contributes to the appreciation of this virus as an important respiratory pathogen.
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Multiplex PCR analysis of clusters of unexplained viral respiratory tract infection in Cambodia


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publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. An Pediatr (Barc). 2006;65(3):205-10 205 ORIGINALES Papel del rinovirus en las infecciones respiratorias en niños hospitalizados Antecedentes El rinovirus se considera un agente causal de cuadros catarrales banales, sin embargo se ha descrito como un agente inductor de exacerbaciones asmáticas en adultos y niños mayores. En nuestro medio no se ha descrito el papel del rinovirus en infecciones respiratorias de niños hospitalizados. Objetivos Describir las infecciones confirmadas por rinovirus en niños hospitalizados por infección respiratoria en un hospital de segundo nivel. We performed a prospective descriptive study in children admitted to hospital with fever or respiratory tract infection and with a positive isolation of rhinovirus in nasopharyngeal washings between September 2004 and July 2005. Virological diagnosis was made with direct immunofluorescent assay and/or reverse transcription-polymerase chain reaction in specimens obtained from nasopha-Estudio parcialmente financiado por el Fondo de Investigaciones Sanitarias. FIS N.º 98/0310. Correspondencia: Dra. C. Calvo Rey. Viento, 5, 5.º A. 28760 Tres Cantos. Madrid. España. Correo electrónico: ccalvo@mi.madritel.es Recibido en noviembre de 2005. Aceptado para su publicación en marzo de 2006. Calvo Rey C, et al. Rinovirus en las infecciones respiratorias en niños hospitalizados 206 An Pediatr (Barc). 2006;65(3):205-10 ryngeal washings. The clinical characteristics of the patients were analyzed. There were 76 children with rhinovirus infection, representing 25 % of admissions in 304 children with fever or respiratory tract infection. Rhinovirus was the second most frequent viral agent identified after respiratory syncytial virus (RSV) (29.9 % of admissions). Fifty-four children (71.1 %) were under 2 years of age. The most frequent clinical diagnoses were recurrent wheezing in 60.5 %, bronchiolitis in 23.7 %, pneumonia in 7.9 %, and upper respiratory tract infection in 5.3 %. Fever > 38°C was present in 57.9 % of the patients and radiologic infiltrate was found in 23.7 %. Oxygen saturation less than 95 % was found in 43.4 % of the patients. Of 22 children aged more than 2 years, a diagnosis of asthmatic crisis was made in 21. Rhinoviruses were frequently identified in hospitalized children with respiratory tract disease and were the second most common viruses after RSV. In our series, it was the most frequent cause of recurrent wheezing in hospitalized children and the second most common cause in infants.
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ROLE OF RHINOVIRUS IN RESPIRATORY TRACT INFECTIONS IN HOSPITALIZED CHILDREN Background


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Beta-2 microglobulin (B2M) plays a pivotal role in the biology of mammals, including its association with major histocompatibility complex (MHC) Class I gene products. The latter molecules have been shown to affect reproduction in both mice and humans, although the exact mechanism is still unknown. Here we report the results of a longitudinal study of the reproductive performance of a genetically modified B2m deficient mouse strain with low MHC Class I expression. Our data show that this mouse strain has an impaired reproductive performance. However, the mice superovulate well and show a normal estrous cycle. Breeding studies from crosses between the transgenic mice and the wild-type parental strain show that B2m deficient mice have a significantly lower frequency of mating than the control B2m þ/þ mice. In addition, the litter size and weaning success of B2m deficient mice were lower than the control. Perinatal lethality of the B2m deficient offspring was also inflicted by cannibalism of the young pups by the B2m deficient female. The impaired breeding phenotype (IBP) can be reversed by reintroducing the B2m gene in F1 heterozygous B2m þ/À animals; thus the presence of B2M confers a normal breeding pattern. The acquisition of an impaired breeding phenotype (IBP) as a result of the knockout of B2m directly implicates B2M in the reproductive cycle of mice and raises the possibility of an effect of B2M on the reproduction of other mammals. beta-2 microglobulin, female reproductive tract, fetus, MHC (H-2), odor discrimination, odortypes
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An Impaired Breeding Phenotype in Mice with a Genetic Deletion of Beta-2 Microglobulin and Diminished MHC Class I Expression: Role in Reproductive Fitness 1