Viruses, Vol. 12, Pages 95: Usefulness of Clinical Definitions of Influenza for Public Health Surveillance Purposes

This study investigated the performance of various case definitions and influenza symptoms in a primary healthcare sentinel surveillance system. A retrospective study of the clinical and epidemiological characteristics of the cases reported by a primary healthcare sentinel surveillance network for eleven years in Catalonia was conducted. Crude and adjusted diagnostic odds ratios (aDORs) and 95% confidence intervals (CIs) of the case definitions and symptoms for all weeks and epidemic weeks were estimated. The most predictive case definition for laboratory-confirmed influenza was the World Health Organization (WHO) case definition for ILI in all weeks (aDOR 2.69; 95% CI 2.42–2.99) and epidemic weeks (aDOR 2.20; 95% CI 1.90–2.54). The symptoms that were significant positive predictors for confirmed influenza were fever, cough, myalgia, headache, malaise, and sudden onset. Fever had the highest aDOR in all weeks (4.03; 95% CI 3.38–4.80) and epidemic weeks (2.78; 95% CI 2.21–3.50). All of the case definitions assessed performed better in patients with comorbidities than in those without. The performance of symptoms varied by age groups, with fever being of high value in older people, and cough being of high value in children. In patients with comorbidities, the performance of fever was the highest (aDOR 5.45; 95% CI 3.43–8.66). No differences in the performance of the case definition or symptoms in influenza cases according to vir...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research

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Discussion A scoping review of facial protection for health care workers during a pandemic found that respirators such as N95 masks provide excellent protection against viruses and aerosols especially when combined with eye protection. Mask fit is an important consideration and respirators are tight fitting and therefore much less breathable and comfortable to wear for long periods of time. Surgical masks do not provide as much protection as respirators but are in general more breathable and more comfortable. Surgical masks also provide much more protection than no mask or improvised masks. Improvised masks do provide some...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
This study showed that the ILI outbreak might be caused by seasonal influenza A/H1N1 pdm09 spread from person to person. Poor living conditions and poor hygiene and sanitation practices were environmental factors that caused the outbreak. As the CBS system was unable to identify this epidemic, it needs to be improved. PMID: 31241062 [PubMed - in process]
Source: Nagoya Journal of Medical Science - Category: International Medicine & Public Health Tags: Nagoya J Med Sci Source Type: research
Influenza has been impacting public health on a global scale since the beginning of recorded history. Influenza, also known as the “flu,” has numerous organizations committed to public health research, developing vaccines, and educating best practices preparing for the upcoming flu season. By gaining an understanding of the flu through history, virology, and how it impacts our society, we can have a better appreciation for the commitment that’s involved with combating the flu. What Is Influenza (and What’s Not)? The eyes of an epidemiologist can twitch for a variety of reasons, one of them being whe...
Source: JEMS Operations - Category: Emergency Medicine Authors: Tags: Exclusive Articles Operations Source Type: news
LITFL • Life in the Fast Lane Medical Blog LITFL • Life in the Fast Lane Medical Blog - Emergency medicine and critical care medical education blog Just when you thought your brain could unwind on a Friday, you realise that it would rather be challenged with some good old fashioned medical trivia FFFF…introducing Funtabulously Frivolous Friday Five 233. Readers can subscribe to FFFF RSS or subscribe to the FFFF weekly EMAIL Question 1: Who popularised museli? + Reveal the Funtabulous Answer expand(document.getElementById('ddet201504324'));expand(document.getElementById('ddetlink201504324')) Dr Maxi...
Source: Life in the Fast Lane - Category: Emergency Medicine Authors: Tags: Frivolous Friday Five Bircher Bircher Museli Clare Stanton Ekbom syndrome II Ernest W Goodpasture Essex Lopresti Goodpastures disease hugo flecker irukandji irukandji syndrome jack barnes John Range Maximilian Bircher-Benner Pa Source Type: blogs
Seasonal influenza is associated with a significant healthcare burden in terms of morbidity and mortality and related costs [1 –3]. Outbreaks of epidemic influenza are frequent due to the highly transmissible nature of the virus, leading to a surge in patient visits and consequent overcrowding in emergency departments and healthcare facilities during the winter months. Timely diagnosis of influenza can improve patient man agement emergency departments, and health care facilities [4,5]. Several of the common signs and symptoms of influenza such as fever, muscle aches, headache, fatigue, dry cough, sore throat, and nas...
Source: Journal of Clinical Virology - Category: Virology Authors: Source Type: research
  Zika continues to be the virus of the day for returning travelers, but there are several other diseases that we need to consider in these patients when they present to us in the emergency department. Chikungunya is epidemic in many of the same countries as Zika and can be even more devastating. And Avian and MERS-CoV is still present in many countries. Unlike patients infected with Zika virus, these patients do require isolation to protect our health care staff from infection. Chikungunya Chikungunya, which means “to walk bent over,” was likely endemic but unrecognized in the United States before the mos...
Source: EPMonthly.com - Category: Emergency Medicine Authors: Tags: Uncategorized Source Type: news
Authors: Rivera-Guzmán N, Del Olmo-Arroyo F, Robles-Arías CM, Rodríguez-Cintrón W Abstract Influenza virus causes annual epidemics of respiratory illness characterized by sudden onset of fever, malaise, myalgias, headache, cough, and other respiratory complains. Each year in the United States, it is estimated that this debilitating respiratory illness accounts for 294,000 excess hospitalizations and 36,000 attributable deaths. Epidemiological studies describe increased cardiovascular mortality during influenza seasons. Cardiovascular involvement in acute influenza infection can occur thr...
Source: Puerto Rico Health Sciences Journal - Category: Global & Universal Tags: P R Health Sci J Source Type: research
This study represents an advance with respect to the field of participatory public health surveillance systems. To-date, reports in the literature of online participatory studies have been limited to self-reported syndromic information only. Some studies have combined self-reported influenza symptoms with serology to understand attack rates in the population. However, linkage to symptoms has been limited in self-sampling studies, and although other studies have demonstrated that individuals can obtain a nasal swab specimen from themselves, we report here that individuals prefer saliva and initial results indicate that it c...
Source: PLOS Currents Outbreaks - Category: Epidemiology Authors: Source Type: research
ds CW Abstract Influenza accounts for a large burden of acute respiratory tract infections in high-income countries; data from lower-income settings are limited due to lack of confirmatory testing. Consecutive outpatients presenting to the largest tertiary care hospital in southern Sri Lanka were surveyed for influenza-like illness (ILI), defined as acute onset of fever ≥ 38.0°C and cough. Patients were administered a questionnaire and nasal/nasopharyngeal sampling for rapid influenza A/B testing. We enrolled 311 patients with ILI from March to November 2013: 170 (54.7%) children and 172 (55.3%) males. Appr...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
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