scholarly journals Incidence and Epidemiological Characteristics of 2009 Pandemic Influenza A (H1N1) Among School-Based Populations in Korea

2012 ◽  
Vol 44 (6) ◽  
pp. 431 ◽  
Author(s):  
Hyun Jung Kim ◽  
Byung Chul Chun ◽  
Hoo Jae Hann ◽  
Jang Wook Sohn ◽  
Sae Yoon Kee ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
School Based ◽  
Influenza A H1n1 ◽  
Epidemiological Characteristics

scholarly journals Influenza-Like Illness in a Community Surrounding a School-Based Outbreak of 2009 Pandemic Influenza A (H1N1) Virus-Chicago, Illinois, 2009

2010 ◽  
Vol 52 (Supplement 1) ◽  
pp. S94-S101 ◽  
Author(s):  
K. B. Janusz ◽  
J. E. Cortes ◽  
F. Serdarevic ◽  
R. C. Jones ◽  
J. D. Jones ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
H1n1 Virus ◽  
Influenza Like Illness ◽  
School Based ◽  
Influenza A H1n1

scholarly journals Surveillance of Hospitalisations for 2009 Pandemic Influenza A(H1N1) in the Netherlands, 5 June – 31 December 2009

2010 ◽  
Vol 15 (2) ◽  
Author(s):  
T M van ‘t Klooster ◽  
C C Wielders ◽  
T Donker ◽  
L Isken ◽  
A Meijer ◽  
...  
Keyword(s):  
The Netherlands ◽  
Pandemic Influenza ◽  
Influenza A ◽  
Medical Condition ◽  
Notification System ◽  
Admission Rates ◽  
Hospitalised Patients ◽  
Influenza A H1n1 ◽  
Mandatory Notification ◽  
Epidemiological Characteristics

We analysed and reported on a weekly basis clinical and epidemiological characteristics of patients hospitalised in the Netherlands for the 2009 pandemic influenza A(H1N1) using information from the national mandatory notification system. The notification criteria changed on 15 August 2009 from all possible, probable and confirmed cases to only laboratory-confirmed pandemic influenza hospitalisations and deaths. In the period of comprehensive case-based surveillance (until 15 August), 2% (35/1,622) of the patients with pandemic influenza were hospitalised. From 5 June to 31 December 2009, a total of 2,181 patients were hospitalised. Of these, 10% (219/2,181) were admitted to an intensive care unit (ICU) and 53 died. Among non-ICU hospitalised patients, 56% (961/1,722) had an underlying medical condition compared with 70% (147/211) of the patients in ICU and 46 of the 51 fatal cases for whom this information was reported. Most common complications were dehydration among non-ICU hospitalised patients and acute respiratory distress syndrome among patients in ICU and patients who died. Children under the age of five years had the highest age-specific hospitalisation rate (62.7/100,000), but relatively few were admitted to an ICU (1.7/100,000). Characteristics and admission rates of hospitalised patients were comparable with reports from other countries and previous influenza seasons. The national notification system was well suited to provide weekly updates of relevant monitoring information on the severity of the pandemic for professionals, decision makers, the media and the public, and could be rapidly adapted to changing information requirements.

scholarly journals Epidemiological Profile of Pandemic Influenza A (H1N1) 2009 at Dhaka Medical College Hospital

1970 ◽  
Vol 11 (1) ◽  
pp. 3-6
Author(s):  
Quazi Tarikul Islam ◽  
Azizul Kahhar ◽  
Syed Mohammad Arif ◽  
Ahmedul Kabir ◽  
Khan Mohammed Arif ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
Medical College Hospital ◽  
College Hospital ◽  
Case Record ◽  
Suspected Infection ◽  
Medical College ◽  
First Case ◽  
Influenza A H1n1 ◽  
Epidemiological Characteristics

The first case of 2009 pandemic influenza A (H1N1) virus infection in Bangladesh was documented on June 18. Subsequently, persons with suspected cases of infection and contacts of those with suspected infection were tested. Individuals in whom infection was confirmed were hospitalized and quarantined, and some of them were closely observed for the purpose of investigating the nature and duration of the disease. In Dhaka Medical College Hospital, there were 28 admitted patients in flu ward and 2335 registered suspected H1N1 influenza cases attended in flue corner but 833 highly suspected cases were recorded in case record form. We describe the epidemiological characteristics of 28 indoor (flu ward) and 833 outdoor (flu corner) patients. Most of them were in between 20 to 30 years age group. Among 833 outdoor patients 611(73.34%) were male and 222(26.65%) were female. 354 (42.49%) patients were student, 195 (23.40%) were service holder. No patients (indoor) had any serious underlying medical conditions. Keywords: Pandemic influenza A (H1N1), Dhaka Medical College Hospital, Bangladesh, epidemiology. DOI:10.3329/jom.v11i1.4259 J Medicine 2010: 11: 3-6

scholarly journals 2009 Influenza A (H1N1) in Panama: a disease affecting children with a benign course

2011 ◽  
Vol 5 (09) ◽  
pp. 664-668 ◽  
Author(s):  
Javier Nieto- Guevara ◽  
Nestor Sosa ◽  
Mariana Garcia ◽  
Alex Martinez ◽  
Marlene Castillo
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
Case Fatality Rate ◽  
Case Fatality ◽  
Nasopharyngeal Swab ◽  
Fatality Rate ◽  
Female Ratio ◽  
Severe Acute Respiratory Infection ◽  
Influenza A H1n1 ◽  
Epidemiological Characteristics

Introduction: Pandemic Influenza A (H1N1) was identified as the major febrile respiratory illness worldwide during the year 2009.  We present a report of its clinical and epidemiological characteristics in children and adults in Panama.  Methodology: A descriptive study from the database of the Gorgas Memorial Institute is presented.   We included patients with severe acute respiratory infection in whom a nasopharyngeal swab was positive by real-time RT-PCR for 2009 Influenza A (H1N1) pandemic virus and negative for seasonal influenza A H1 and H3. Results: From 26 April 2009 to 11 January 2010, confirmed cases of pandemic 2009 Influenza A (H1N1) reached 806. The overall incident rate was 23.35 cases of pandemic influenza per 100,000 habitants, with the highest incidence found in the age group between 10 to 14 years of age (58.67 cases per 100,000 habitants).  The median age for the cases was 13 years (ages ranging from one day to 88 years) and 71% were from the Panama City Metropolitan Area.  The male/female ratio was 1:1 and 90% were managed as out-patients.   An influenza-like syndrome was the presenting diagnosis in 99% of the cases.  Fever and cough were the most frequent symptoms reported in all age groups. The case fatality rate was 0.3 cases per 100,000 habitants. Conclusion: The 2009 Influenza A (H1N1) outbreak affected mainly the pediatric population, had a low case fatality rate, and was the predominant virus circulating in Panama during the 2009/2010 flu season

scholarly journals Experience of Pandemic Influenza A (H1N1) 2009 at Dhaka Medical College Hospital

1970 ◽  
Vol 11 (2) ◽  
pp. 119-123
Author(s):  
Quazi Tarikul Islam ◽  
Azizul Kahhar ◽  
Syed Mohammad Arif ◽  
HAM Nazmul Ahasan ◽  
Md Mahmudur Rahman Siddiqui ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
Medical College Hospital ◽  
Suspected Case ◽  
Rt Pcr ◽  
College Hospital ◽  
Medical College ◽  
First Case ◽  
Influenza A H1n1 ◽  
Epidemiological Characteristics

Introduction: Bangladesh recorded the first case of 2009 pandemic influenza A (H1N1) virus infection on 18thJune 2009. This report describes the clinical and epidemiological characteristics of both the indoor and outdoorpatients reporting in Flu Ward and Flu Corner of Dhaka Medical College Hospital.Methods: This cross-sectional study was done on highly suspected 833 registered outdoor (flu corner) and 28indoor patients admitted in Flu ward of Dhaka Medical College Hospital during the study period of August 2009 toNovember 2009. A suspected case was defined as an influenza-like illness and either a history of travel to a countrywhere infection had been reported in the previous 7 days or an epidemiologic link to a person with confirmed orsuspected infection in the previous 7 days. A confirmed case was defined by a positive real-time reverse-transcriptasepolymerase chain reaction (RT-PCR) assay.Results: Most of the patients were in between 20 to 30 years age group. Indoor patients presented with mostly fever(92.85%), rhinorrhea (71.42%), shortness of breathe (89.28%) and cough (64.28%). Maximum duration of feverin indoor patients was 4 days. RT-PCR from throat swab sample for H1N1 tested positive in 9 (32.14%) indoorpatients. Out of the 833 outdoor patients 596(71.54%) patients had fever, 585(70.22%) had cough, 410(49.21%)had rhinorrhea and 314(37.69%) had sore throat. Only 2(7.14%) admitted patients died of flu.Conclusion: Despite widespread infection mortality rate is quite low. Prompt implementation and adherence tonational guidelines on 2009 pandemic influenza A (H1N1) should be encouraged.Keywords: Pandemic influenza A (H1N1); Dhaka Medical College Hospital; Bangladesh.DOI: 10.3329/jom.v11i2.5452J MEDICINE 2010; 11 : 119-123

scholarly journals Expression of Surfactant protein D (SP-D) distinguishes severe pandemic influenza A(H1N1) from COVID-19

2021 ◽  
Author(s):  
José Alberto Choreño-Parra ◽  
Luis Armando Jiménez-Álvarez ◽  
Gustavo Ramírez-Martínez ◽  
Alfredo Cruz-Lagunas ◽  
Mahima Thapa ◽  
...  
Keyword(s):  
Pandemic Influenza ◽  
Influenza A ◽  
Alveolar Epithelium ◽  
Surfactant Protein ◽  
High Serum ◽  
Surfactant Protein D ◽  
Diagnostic Challenge ◽  
Moderate Disease ◽  
Influenza A H1n1 ◽  
Novel Biomarkers

Abstract The differentiation of influenza and COVID-19 could constitute a diagnostic challenge during the ongoing winter due to their clinical similitude. Thus, novel biomarkers that enable distinguishing both diseases are required. Here, we evaluated whether the surfactant protein D (SP-D), a collectin produced at the alveolar epithelium with known immune properties, was useful to differentiate pandemic influenza A(H1N1) from COVID-19 in critically ill patients. Our results revealed high serum SP-D levels in severe pandemic influenza but not COVID-19 patients. This finding was validated in a separate cohort of mechanically ventilated COVID-19 patients who also showed low plasma SP-D levels. However, plasma SP-D levels did not distinguish seasonal influenza from COVID-19 in mild-to-moderate disease. Finally, we found that high serum SP-D levels were associated with mortality and renal failure among severe pandemic influenza cases. Thus, our studies have identified SP-D as a unique biomarker expressed during severe pandemic influenza but not COVID-19.

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