COVID-19 in children: clinical and epidemiological spectrum in the community.

Most publications on pediatric COVID-19 in Spain were performed at the beginning of the pandemic when some diagnostic tools were not widely available. This study aims to show the real spectrum of the infection based on wide detection of cases due to symptoms and contact tracing. A descriptive and analytical observational study was performed including pediatric cases (0 to 14 years) from the region of Aragón between May 12 and October 31, 2020. Diagnostics was by PCR detection of viral RNA, rapid antigen detection test, or positive IgG serology. There were 5933 positive children included. Of them, 49.03% were women. The mean age was 7.53 ± 4.28 years. The source of infection could not be determined in 17.8% of cases. As for the rest, was determined to be within the family environment in 67.8%. The percentage of asymptomatic patients was 50.3%. Among symptomatic patients, fever (58.1%) and cough (46.7%) were the most frequent symptoms. Hospitalization was required in 0.52% of infected, intensive care unit admission was on 0.05%, and there was one death (0.02%). Children under the age of one presented some symptoms more frequently (71.6% vs 48.5%; OR 2.68; 95% CI 2.08 to 3.45; p < 0.001) and required more hospitalizations (3.9% vs 0.34%; OR 11.52; 95% CI 5.65 to 23.52; p < 0.001).Conclusion: In our environment, SARS-CoV-2 infection is like other mild respiratory viral infections in the population under the age of 15. The contagion occurs mainly in the family environment, the number of asymptomatic is high, being the symptoms mild and the complications very infrequent. What is Known: • Pediatric infection produced by SARS-CoV-2 has manifested as a mild disease in relation to adult age, although with higher affectation at the youngest ages. • Nearly all studies on epidemiology and clinical spectrum of the disease were conducted with patients diagnosed at the beginning of the pandemic. By then, diagnostic tools were only available in hospitals and in emergency units. What is New: • Once diagnostic means were available in primary care medicine and were used not only for the diagnosis of clinical symptoms of the patient, but for the tracing of case contacts, a much more precise approach to the epidemiology and clinical manifestations of the disease was allowed, as described in this study.

Síndrome de Loeffler, ¿más frecuente de lo que pensamos?: un caso asociado a Ascaris lumbricoides y Strongyloides stercolaris

El síndrome de Loeffler consiste en una neumonía eosinofílica aguda consecuencia de una reacción inmunológica de tipo alérgico, principalmente secundario a la fase pulmonar de los ciclos de algunos parásitos. Los parásitos más frecuentemente asociados son los nemátodos, y, entre ellos, Ascaris lumbricoides que es el principal causante de Síndrome de Loeffler. Clínicamente puede cursar con tos, dificultad respiratoria de distinto grado, sibilancias y subcrepitantes en la auscultación y fiebre. Como hallazgos radiológicos suelen apreciarse infiltrados intersticiales y en los exámenes de laboratorio destaca la presencia de eosinofilia en el hemograma. Se trata de un síndrome con muy baja incidencia a nivel global, probablemente debido a su infradiagnóstico, por lo que presentamos el caso de un paciente de 14 años con diagnóstico de Síndrome de Loeffler asociado a Ascaris lumbricoides y a Strongyloides stercolaris. (provisto por Infomedic International)

Loeffler's syndrome consist of an acute eosinophilic pneumonia due to an immunnologic reaction, mainly owing to the pulmonary phase of the life's cycles of some parasites. Nematodes are the most common parasites related to the syndrome, and between them, Ascaris lumbricoides is the one that causes most of the Loeffler's Syndrome. Symptoms that can be caused by the syndrome are cough, breath difficulties of different grades, fever and wheezing and crackling on auscultation. Radiological findings are bilateral interstitial infiltrates and in laboratory test eosinophilia stands out in blood count. The global incidence of the syndrome is very low, maybe due to an underdiagnosis, so we present the case of a 14-year-old male child with Loeffler´s Syndrome caused by Ascaris lumbricoides and Strongyloides stercolaris. (provided by Infomedic International)