Pesquisa | Influenza A (H1N1)

Autor(es): Cheng, Allen C; Holmes, Mark; Dwyer, Dominic E; Senanayake, Sanjaya; Cooley, Louise; Irving, Louis B; Simpson, Graham; Korman, Tony; Macartney, Kristine; Friedman, N Deborah; Wark, Peter; Howell, Anna; Blyth, Christopher C; Crawford, Nigel; Buttery, Jim; Bowler, Simon; Upham, John W; Waterer, Grant W; Kotsimbos, Tom; Kelly, Paul M

Fonte: Commun Dis Intell (2018);432019 Nov 18.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31738866

Resumo: The Influenza Complications Alert Network (FluCAN) is a sentinel hospital-based surveillance program that operates at sites in all jurisdictions in Australia. This report summarises the epidemiology of hospitalisations with laboratory-confirmed influenza during the 2018 influenza season. In this observational surveillance system, cases were defined as patients admitted to any of the 17 sentinel hospitals with influenza confirmed by nucleic acid detection. Data were also collected on a frequ (mais)

Link(s):

https://dx.doi.org/10.33321/cdi.2019.43.48

Respiratory Virus Infections in People Over 14 Years of Age in Poland in the Epidemic Season of 2017/18.

Autor(es): Szymanski, K; Luniewska, K; Hallmann-Szelinska, E; Kowalczyk, D; Salamatin, R; Masny, A; Brydak, L B

Fonte: Adv Exp Med Biol;1222: 75-80, 2019.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31559569

Resumo: People most at risk of influenza complications are the elderly with impaired immunity. Clinical picture of influenza virus infection includes symptoms such as chills, increased body temperature, dry cough, chest pain, or dizziness as well as headaches and muscle aches. In the diagnosis of influenza, quick and effective tests are necessary. Sensitive diagnostic methods of molecular biology require more time, but the result firmly confirm or exclude the presence of the genetic material of inf (mais)

Assunto(s): Epidemias Vacinas contra Influenza/administração & dosagem Influenza Humana/epidemiologia Infecções Respiratórias/epidemiologia Adolescente Adulto Idoso Idoso de 80 Anos ou mais Feminino Humanos Vírus da Influenza A Subtipo H1N1 Influenza Humana/diagnóstico Masculino Pessoa de Meia-Idade Polônia/epidemiologia Estações do Ano Vigilância de Evento Sentinela Adulto Jovem

Link(s):

https://dx.doi.org/10.1007/5584_2019_437

Seasonality of influenza and its association with meteorological parameters in two cities of Pakistan: A time series analysis.

Autor(es): Nisar, Nadia; Badar, Nazish; Aamir, Uzma Bashir; Yaqoob, Aashifa; Tripathy, Jaya Prasad; Laxmeshwar, Chinmay; Munir, Fariha; Zaidi, Syed Sohail Zahoor

Fonte: PLoS One;14(7): e0219376, 2019.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31323025

Resumo: BACKGROUND: Influenza is known to have a specific pattern of seasonality the reasons for which are yet to be fully ascertained. Temperate zones show influenza epidemic during the winter months. The tropical and subtropical regions show more diverse influenza outbreak patterns. This study explores the seasonality of influenza activity and predicts influenza peak based on historical surveillance time series data in Islamabad and Multan, Pakistan. METHODS: This is a descriptive study of routin (mais)

Link(s):

https://dx.doi.org/10.1371/journal.pone.0219376

Evaluation of the 2017/18 Influenza Epidemic Season in Poland Based on the SENTINEL Surveillance System.

Autor(es): Luniewska, K; Szymanski, K; Hallmann-Szelinska, E; Kowalczyk, D; Salamatin, R; Masny, A; Brydak, L B

Fonte: Adv Exp Med Biol;1222: 63-68, 2019.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31352577

Resumo: The SENTINEL influenza surveillance system is an important tool for monitoring influenza in Poland. Data from this system are necessary to determine the dynamics of seasonal infections and to announce the epidemic by the country level. For the 2017/18 epidemic season, the dominance of influenza type B was recorded and the highest percentage of infections was recorded in the age group 45-64 years. Among the subtypes of influenza type A, A/H1N1/pdm09 was the predominated subtype. Most cases (mais)

Link(s):

https://dx.doi.org/10.1007/5584_2019_424

10.

Circulation and characterization of seasonal influenza viruses in Cambodia, 2012-2015.

Autor(es): Horwood, Paul F; Karlsson, Erik A; Horm, Srey Viseth; Ly, Sovann; Heng, Seng; Chin, Savuth; Darapheak, Chau; Saunders, David; Chanthap, Lon; Rith, Sareth; Y, Phalla; Chea, Kim Lay; Sar, Borann; Parry, Amy; Ieng, Vanra; Tsuyouka, Reiko; Deng, Yi-Mo; Hurt, Aeron C; Barr, Ian G; Komadina, Naomi; Buchy, Philippe; Dussart, Philippe

Fonte: Influenza Other Respir Viruses;13(5): 465-476, 2019 09.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31251478

Resumo: BACKGROUND: Influenza virus circulation is monitored through the Cambodian influenza-like illness (ILI) sentinel surveillance system and isolates are characterized by the National Influenza Centre (NIC). Seasonal influenza circulation has previously been characterized by year-round activity and a peak during the rainy season (June-November). OBJECTIVES: We documented the circulation of seasonal influenza in Cambodia for 2012-2015 and investigated genetic, antigenic, and antiviral resistance (mais)

Link(s):

https://dx.doi.org/10.1111/irv.12647

11.

Influenza epidemiology and influenza vaccine effectiveness during the 2016-2017 season in the Global Influenza Hospital Surveillance Network (GIHSN).

Autor(es): Baselga-Moreno, Víctor; Trushakova, Svetlana; McNeil, Shelly; Sominina, Anna; Nunes, Marta C; Draganescu, Anca; Unal, Serhat; Koul, Parvaiz; Kyncl, Jan; Zhang, Tao; Kuatbayeva, Ainagul; Ben-Salah, Afif; Burtseva, Elena; Puig-Barberà, Joan; Díez-Domingo, Javier

Fonte: BMC Public Health;19(1): 487, 2019 May 02.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 31046725

Resumo: BACKGROUND: The Global Influenza Hospital Surveillance Network (GIHSN) aims to determine the burden of severe influenza disease and Influenza Vaccine Effectiveness (IVE). This is a prospective, active surveillance and hospital-based epidemiological study to collect epidemiological data in the GIHSN. In the 2016-2017 influenza season, 15 sites in 14 countries participated in the GIHSN, although the analyses could not be performed in 2 sites. A common core protocol was used in order to make r (mais)

Link(s):

https://dx.doi.org/10.1186/s12889-019-6713-5

12.

Hospital-acquired influenza in an Australian tertiary Centre 2017: a surveillance based study.

Autor(es): Parkash, Nikita; Beckingham, Wendy; Andersson, Patiyan; Kelly, Paul; Senanayake, Sanjaya; Coatsworth, Nicholas

Fonte: BMC Pulm Med;19(1): 79, 2019 Apr 16.

MEDLINE - Literatura Internacional em Ciências da Saúde PMID: 30991976

Resumo: BACKGROUND: In 2017, Australia experienced its highest levels of influenza virus activity since the 2009 pandemic. This allowed detailed comparison of the characteristics of patients with community and hospital-acquired influenza, and infection control factors that contributed to influenza spread. METHODS: A surveillance based study was conducted on hospitalised patients with laboratory-confirmed influenza at the Canberra Hospital during April-October 2017. Differences between the hospital- (mais) acquired and community-acquired patient characteristics and outcomes were assessed by univariate analysis. Epidemiologic curves were developed and cluster distribution within the hospital was determined. RESULTS: Two hundred and ninety-two patients were included in the study. Twenty-eight (9.6%) acquired influenza in hospital, representing a higher proportion than any of the previous 5 years (range 0.9-5.8%). These patients were more likely to have influenza A (p = 0.021), had higher rates of diabetes (p = 0.015), malignancy (p = 0.046) and chronic liver disease (p = 0.043). Patients acquiring influenza in hospital met clinical criteria for influenza like illness in 25% of cases, compared with 64.4% for community-acquired cases (p < 0.001). Hospital-acquired influenza cases occurred in two distinct clusters. Patients were moved an average of 5 times after diagnosis. Mean length of stay following diagnosis was 13 days compared to 5 days for community-acquired cases (p < 0.001). Of the patients with hospital-acquired influenza, 22 were in shared rooms during their incubation period and 9 were not isolated in single rooms following diagnosis. Treatment was initiated within the recommended 48 h period following symptom onset for 62.5% of hospital-acquired cases compared with 39.8% of community-acquired cases (p = 0.033). CONCLUSIONS: Our results show that clinical presentation differed between patients with hospital-acquired influenza compared with those who acquired influenza in the community. Cases occurred in two clusters suggesting intra-hospital transmission rather than random importation from the community, highlighting the importance of infection control measures to limit influenza spread. Patients with hospital-acquired influenza may present without classical features of an influenza-like illness and this should promote earlier diagnostic testing and isolation to limit spread. Movement of patients after diagnosis is likely to facilitate spread within the hospital.

Link(s):

https://dx.doi.org/10.1186/s12890-019-0842-6

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Pesquisa | Influenza A (H1N1)

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Influenza epidemiology in patients admitted to sentinel Australian hospitals in 2018: the Influenza Complications Alert Network (FluCAN).

Respiratory Virus Infections in People Over 14 Years of Age in Poland in the Epidemic Season of 2017/18.

Seasonality of influenza and its association with meteorological parameters in two cities of Pakistan: A time series analysis.

Evaluation of the 2017/18 Influenza Epidemic Season in Poland Based on the SENTINEL Surveillance System.

Circulation and characterization of seasonal influenza viruses in Cambodia, 2012-2015.

Influenza epidemiology and influenza vaccine effectiveness during the 2016-2017 season in the Global Influenza Hospital Surveillance Network (GIHSN).

Hospital-acquired influenza in an Australian tertiary Centre 2017: a surveillance based study.