Correspondence
In search of other respiratory viruses during the COVID-19 pandemic
En búsqueda de otros virus respiratorios durante la pandemia COVID-19
a Laboratorio de Biología Molecular, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile
b Microbiología Clínica, Programa Especialidades Médicas, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile
c Laboratorio de Microbiología, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile
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Saint-Pierre Contreras, G. Muñoz Gomez, F. Silva Ojeda" "autores" => array:3 [ 0 => array:4 [ "nombre" => "G." "apellidos" => "Saint-Pierre Contreras" "email" => array:1 [ 0 => "gsaintpierre@hcuch.cl" ] "referencia" => array:3 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] 2 => array:2 [ "etiqueta" => "*" "identificador" => "cor0005" ] ] ] 1 => array:3 [ "nombre" => "G." "apellidos" => "Muñoz Gomez" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 2 => array:3 [ "nombre" => "F." "apellidos" => "Silva Ojeda" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "aff0015" ] ] ] ] "afiliaciones" => array:3 [ 0 => array:3 [ "entidad" => "Laboratorio de Biología Molecular, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Microbiología Clínica, Programa Especialidades Médicas, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile" "etiqueta" => "b" "identificador" => "aff0010" ] 2 => array:3 [ "entidad" => "Laboratorio de Microbiología, Hospital Clínico Universidad de Chile, Santiago de Chile, Chile" "etiqueta" => "c" "identificador" => "aff0015" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "En búsqueda de otros virus respiratorios durante la pandemia COVID-19" ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">SARS-CoV-2 infection continues to affect public health worldwide. On the American continents, the number of reported cases continues to rise in Brazil, Argentina, Peru, Chile, the USA, and Mexico, among others. In regard to other respiratory viruses, South America has reported little circulation of these entities during the southern hemisphere’s winter period (June–August 2020), principally described in press reports.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">On the other hand, the Pan American Health Organization (PAHO) highlighted that in the month of July, the expected increase in seasonal flu was not recorded; indeed, rates were even lower than off-season values.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> A decrease in circulation of other respiratory viruses was also reported in Oceania. In Australia, the annual positivity rate for influenza was just 0.88% as of July 15, 2020.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><p id="par0015" class="elsevierStylePara elsevierViewall">However, in the USA and Europe, there were reports of flu coexisting with COVID-19 in the population during the winter period of January–March 2020. In Europe, the peak occurred in mid-January, with a 45% positivity rate detected in sentinel centers. There was a predominance of influenza A (H1N1)pdm09 followed by A H3N2 and B/Victoria.<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">4,5</span></a></p><p id="par0020" class="elsevierStylePara elsevierViewall">Due to this disparate behavior and the scarce information available in Latin America, we evaluated the circulation of respiratory viruses detected in July 2020 in the University of Chile Clinical Hospital (HCUCH, for its initials in Spanish). HCUCH is a public university hospital which mainly cares for adult patients. It is located in the northern zone of Chile’s capital city in an area with a greater population density than other municipalities in the country.</p><p id="par0025" class="elsevierStylePara elsevierViewall">The aim of this work was to discover the magnitude and distribution of respiratory viruses among individuals who consulted in the emergency department (ED) during the month of July 2020 and compare it to the same period in 2019.</p><p id="par0030" class="elsevierStylePara elsevierViewall">All tests ordered for the diagnosis of respiratory viruses via PCR in the months of July 2020 and July 2019—the period of the year with the greatest number of respiratory consultations at our institution—were retrospectively analyzed.</p><p id="par0035" class="elsevierStylePara elsevierViewall">The method used for testing for respiratory viruses was a nasopharyngeal swab collected in a universal transport medium. Later, a FilmArray® Respiratory 2.0 expanded molecular panel for 20 respiratory pathogens (BioFire® Diagnostics, Salt Lake City, USA) was used. This machine, which is automated from extraction to amplification, uses nested PCR to improve the technique’s sensitivity. The pathogens included in the kit were: adenovirus, coronavirus 229E, coronavirus HKU1, coronavirus OC43, coronavirus NL63, human metapneumovirus, human rhinovirus/enterovirus, influenza A, influenza A/H1, influenza A/H1-2009, influenza A/H3, influenza B, parainfluenza 1, parainfluenza 2, parainfluenza 3, parainfluenza 4, RSV, <span class="elsevierStyleItalic">Bordetella pertussis, Chlamydophila pneumoniae</span>, and <span class="elsevierStyleItalic">Mycoplasma pneumoniae.</span></p><p id="par0040" class="elsevierStylePara elsevierViewall">In July 2020, 630 tests for the detection of SARS-CoV-2 were ordered from the ED, including 133 samples in which a differential diagnosis with other respiratory viruses was also conducted using a molecular panel. A 19% positivity rate for SARS-CoV-2 and a 0% positivity rate for other viruses were found, representing a decrease in the circulation of other respiratory viral agents of 100%.</p><p id="par0045" class="elsevierStylePara elsevierViewall">In the month of July 2019, 387 respiratory molecular panel tests were performed: 53% of the samples were positive. The virus with the greatest circulation was respiratory syncytial virus (RSV) (63%), followed by influenza A H1N1 (14%) and influenza B (11%).</p><p id="par0050" class="elsevierStylePara elsevierViewall">Comparing our results to the surveillance of respiratory agents in the country, it was observed that in July 2020, 3,602 samples were analyzed in sentinel centers and there was a positivity rate of 0.97% for non-SARS-CoV-2 samples. This is in contrast to the previous year (July 2019), in which 9,898 samples were analyzed and there was a positivity rate of 47.32%.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a> The 100% decrease in the circulation of other respiratory viruses observed in our results is in line with what has been described in national surveillance (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>).</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0055" class="elsevierStylePara elsevierViewall">Is maintaining physical distance, hand washing, and use of masks so important to achieving a decrease in other respiratory viral agents? In Chile, a campaign for frequent hand washing has been in place since from March 13, 2020. In-person classes in schools and universities were suspended on March 15, 2020. Air borders were closed on March 18, 2020. Lastly, circulation of the population in public spaces without a mask has been prohibited as of April 17, 2020.</p><p id="par0060" class="elsevierStylePara elsevierViewall">In Kentucky (USA), a decrease in positivity rates for seasonal respiratory viruses was observed and was associated with the strict social distancing measures implemented.<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a> A brief review of the Taiwanese, Korean, and Japanese populations<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a> showed that in 2020, the peak in seasonal flu was lower compared to previous years. This was partly related to stricter physical distancing measures, modifications in greetings, and their cultures’ use of masks. In 2018, the impact of travelers and the importation of certain diseases was studied in the USA. Greater disease transmission occurred in travelers who arrived from medium- or low-income countries. These included skin infections, insect bites, and viral respiratory diseases.<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a></p><p id="par0065" class="elsevierStylePara elsevierViewall">Though it is not possible to determine the causes of the low circulation of other respiratory viruses in this report, it would be very interesting to discover more about their behavior in the southern hemisphere during the pandemic period. The differences observed in the basic epidemiology of these respiratory pathogens could generate potential changes in their re-emergence.</p><span id="sec0041" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0101">Funding</span><p id="par0075" class="elsevierStylePara elsevierViewall">The authors received no funding for the creation of this article.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:2 [ 0 => array:2 [ "identificador" => "sec0041" "titulo" => "Funding" ] 1 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as: Saint-Pierre Contreras G, Muñoz Gomez G, Silva Ojeda F. En búsqueda de otros virus respiratorios durante la pandemia COVID-19. Rev Clin Esp. 2021;221:247–248.</p>" ] ] "multimedia" => array:1 [ 0 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "leyenda" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">HCUCH: University of Chile Clinical Hospital; PHI: National Public Health Institute of Chile; N/A: information not available; RSV: respiratory syncytial virus.</p><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Source: created by the author with data obtained from the PHI.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">HCUCH (July 2019) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">HCUCH (July 2020) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">PHI laboratory network (July 2019) \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col" style="border-bottom: 2px solid black">PHI laboratory network (July 2020) \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Nasopharyngeal swabs \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">387 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">133 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">9,898 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3,602 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Positive nasopharyngeal swabs \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">207 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4,684 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">35 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Adenovirus \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">280 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Parainfluenza \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">308 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">9 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Human metapneumovirus \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">122 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">9 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">RSV \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">129 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3,148 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Influenza A \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">30 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">494 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Influenza B \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">22 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">332 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Other respiratory viruses \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">22 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">N/A \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">N/A \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab2565511.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Frequency of non-SARS-CoV-2 respiratory viruses diagnosed via molecular biology in the HCUCH compared to the national frequency in the national respiratory virus reference center, PHI (July 2019 and July 2020).</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:9 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:1 [ "referenciaCompleta" => "Observatorio Virus Respiratorios Universidad Católica [Accessed 14 September 2020] Available from: <a target="_blank" href="https://observatorio.medicina.uc.cl/virus-respiratorios-siguen-en-descenso/">https://observatorio.medicina.uc.cl/virus-respiratorios-siguen-en-descenso/</a>." ] ] ] 1 => array:3 [ "identificador" => "bib0010" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:1 [ "referenciaCompleta" => "Organización Panamericana de la Salud, Informe situación Influenza, OPS [Accessed 14 September 2020] Available from: <a target="_blank" href="https://www.paho.org/es/informe-situacion-influenza">https://www.paho.org/es/informe-situacion-influenza</a>." ] ] ] 2 => array:3 [ "identificador" => "bib0015" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:1 [ "referenciaCompleta" => "The Department of Health, Australian Influenza Surveillance Report [Accessed 14 September 2020] Available from: <a target="_blank" href="https://www1.health.gov.au/internet/main/publishing.nsf/Content/5F27336697A16499CA2585B60001ED37/$File/flu-08-2020.pdf">https://www1.health.gov.au/internet/main/publishing.nsf/Content/5F27336697A16499CA2585B60001ED37/$File/flu-08-2020.pdf</a>." ] ] ] 3 => array:3 [ "identificador" => "bib0020" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:1 [ "referenciaCompleta" => "Sistema de Vigilancia de la Gripe en España [Accessed 14 September 2020] Available from: <a target="_blank" href="https://vgripe.isciii.es/inicio.do;jsessionid=85C541F2DCF4218ACB1F0D54962618FF">https://vgripe.isciii.es/inicio.do;jsessionid=85C541F2DCF4218ACB1F0D54962618FF</a>." ] ] ] 4 => array:3 [ "identificador" => "bib0025" "etiqueta" => "5" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "COVID-19 and influenza A coinfection: a matter of principle" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => "M.A. Lozano-Parras" 1 => "M. Amann-Arevalo" 2 => "M. Ciller-Martinez" 3 => "E. Culebras-Lopez" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.eimc.2020.06.017" "Revista" => array:2 [ "tituloSerie" => "Enferm Infecc Microbiol Clin" "fecha" => "2020" ] ] ] ] ] ] 5 => array:3 [ "identificador" => "bib0030" "etiqueta" => "6" "referencia" => array:1 [ 0 => array:1 [ "referenciaCompleta" => "Instituto de Salud Pública de Chile, Vigilancia de Virus Respiratorios [Accessed 14 September 2020] Available from: <a target="_blank" href="http://www.ispch.cl/virusrespiratorios">http://www.ispch.cl/virusrespiratorios</a>." ] ] ] 6 => array:3 [ "identificador" => "bib0035" "etiqueta" => "7" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "The incidence of common respiratory viruses during the COVID-19 pandemic: results from the Louisville COVID-19 Epidemiology Study" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "B.C. Bohn" 1 => "A.M. Wilde" 2 => "S.E. Moore" 3 => "M. Song" 4 => "C.J. Patross" 5 => "A.D. Junkins" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.18297/jri/vol4/iss1/58" "Revista" => array:3 [ "tituloSerie" => "JRI" "fecha" => "2020" "volumen" => "4" ] ] ] ] ] ] 7 => array:3 [ "identificador" => "bib0040" "etiqueta" => "8" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Does COVID-19 infection impact on the trend of seasonal influenza infection? 11 countries and regions, from 2014 to 2020" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "T. Itayi" 1 => "Y. Furase" 2 => "K. Jindai" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.ijid.2020.05.088" "Revista" => array:6 [ "tituloSerie" => "Int J Infect Dis" "fecha" => "2020" "volumen" => "97" "paginaInicial" => "78" "paginaFinal" => "80" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/32492532" "web" => "Medline" ] ] ] ] ] ] ] ] 8 => array:3 [ "identificador" => "bib0045" "etiqueta" => "9" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "GeoSentinel Surveillance Network. Infectious diseases acquired by international travellers visiting the USA" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "R.J. Stoney" 1 => "D.H. Esposito" 2 => "P. Kozarsky" 3 => "D.H. Hamer" 4 => "M.P. Grobusch" 5 => "E. Gkrania-Klotsas" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1093/jtm/tay053" "Revista" => array:3 [ "tituloSerie" => "J Travel Med" "fecha" => "2018" "volumen" => "25" ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/22548874/0000022100000004/v2_202104080754/S2254887421000205/v2_202104080754/en/main.assets" "Apartado" => array:4 [ "identificador" => "71813" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Correspondence" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/22548874/0000022100000004/v2_202104080754/S2254887421000205/v2_202104080754/en/main.pdf?idApp=WRCEE&text.app=https://revclinesp.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2254887421000205?idApp=WRCEE" ]
| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 1 | 0 | 1 |
| 2024 October | 29 | 0 | 29 |
| 2024 September | 19 | 0 | 19 |
| 2024 August | 11 | 0 | 11 |
| 2024 July | 21 | 0 | 21 |
| 2024 June | 18 | 2 | 20 |
| 2024 May | 28 | 1 | 29 |
| 2024 April | 21 | 0 | 21 |
| 2024 March | 21 | 0 | 21 |
| 2024 February | 14 | 0 | 14 |
| 2024 January | 16 | 0 | 16 |
| 2023 December | 13 | 0 | 13 |
| 2023 November | 23 | 0 | 23 |
| 2023 October | 15 | 0 | 15 |
| 2023 September | 23 | 0 | 23 |
| 2023 August | 9 | 0 | 9 |
| 2023 July | 24 | 0 | 24 |
| 2023 June | 17 | 1 | 18 |
| 2023 May | 16 | 3 | 19 |
| 2023 April | 14 | 0 | 14 |
| 2023 March | 17 | 3 | 20 |
| 2023 February | 7 | 0 | 7 |
| 2023 January | 14 | 0 | 14 |
| 2022 December | 19 | 0 | 19 |
| 2022 November | 19 | 1 | 20 |
| 2022 October | 16 | 3 | 19 |
| 2022 September | 15 | 2 | 17 |
| 2022 August | 13 | 5 | 18 |
| 2022 July | 23 | 3 | 26 |
| 2022 June | 13 | 0 | 13 |
| 2022 May | 20 | 3 | 23 |
| 2022 April | 17 | 2 | 19 |
| 2022 March | 22 | 2 | 24 |
| 2022 February | 15 | 4 | 19 |
| 2022 January | 17 | 1 | 18 |
| 2021 December | 14 | 0 | 14 |
| 2021 November | 9 | 0 | 9 |
| 2021 October | 3 | 1 | 4 |
| 2021 September | 0 | 1 | 1 |
| 2021 August | 2 | 2 | 4 |
| 2021 July | 1 | 0 | 1 |
| 2021 June | 3 | 2 | 5 |
| 2021 May | 4 | 1 | 5 |
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