PDF-(BOOK)-Manual for the Laboratory Diagnosis and Virological Surveillance of Influenza

In many settings influenza is recognized as a major cause of disease and death In other parts of the world however its epidemiology and the degree of its impact on human health remain relatively uncertain in large part due to a lack of virological and disease surveillanceWHO has developed this manual to strengthen the laboratory diagnosis and virological surveillance of influenza infection by providing standard methods for the collection detection isolation and characterization of viruses The specific objectives of the manual include increasing understanding of the principles and importance of haemagglutination and haemagglutination inhibition HAI testing in the identification of influenza virus field isolates and in serological diagnosis using the WHO Influenza Reagent Kit ensuring HAI test results are analyzed and interpreted accurately by including the appropriate controls and recognizing potential problems in interpreting test results increasing understanding of the principles of reverse transcription polymerase chain reaction RTPCR and its application in the typing and subtyping of influenza viruses highlighting the significance of influenza virus isolation as compared with direct antigen detection increasing understanding of the principles of the microneutralization assay and its application to serological diagnosis increasing understanding of the principles of the neuraminidase inhibition NAI assays used in the detection of virus strains resistant to antiviralsAll national and international influenza surveillance systems including those for monitoring clinical disease depend fundamentally upon the consistent and successful implementation. FluWatch. Influenza-like Illness (ILI) . surveillance system - Challenges and Opportunities. Dr. Christina . Bancej. , . Public Health Agency of Canada. on behalf of the 2015-16 . FluWatch. Team: Liza Lee, Joy . Two funded influenza vaccines. Key campaign messages. 2018 promotional campaign . Eligibility. Influenza - the disease. 2018 vaccines and strains. Precautions and contraindications. Influenza and healthcare workers. Respiratory Viruses Update. 2013-2014. Pete Shult, PhD.. Director, Communicable Disease Division . and Emergency Response. Erik Reisdorf, MPH M (ASCP). CM. Team . Lead, . Virology Laboratory. WCLN . 19. th. – 21. st. October 2017. Tsirang. Background. Influenza Like-illness surveillance was established in 2009 as preparedness against H1N1 pandemic.. Burden of influenza. Dominant circulating strains. 15 February 20211Influenza Update N 38715 February2021 based on data up to 31January2021Information in this report is categorized by influenza transmission zones which are geographical groups of count 18January 20211Influenza Update N 38518January2021 based on data up to 03 January2020Information in this report is categorized by influenza transmission zones which are geographical groups of countrie an increase in the number of cases of a disease above what is normally expected . science of protecting and improving the health of people and their communities. a preparation that provides a trigger to help the immune system build immunity. Orthomyxoviridae family of viruses. RNA enveloped viruses that make up three genera. Influenzavirus A. Influenzavirus B. Influenzavirus C. The type A viruses are the most virulent among the three, genetically diverse and infecting human, birds and animals. The influenza virus group consists of three enveloped RNA members of the family Orthomyxoviridae:. influenza A, B, and C. . Influenza A . viruses are further classified into hemagglutinin (H) and neuraminidase. 1 Avian influenza (AI) virus has been circulating worldwide for centuries with four known outbreaks recorded in the last century. The present wave of Highly Pathogenic Avian Influenza (HPAI) emerged State of Alaska Division of Public Health, Section of Laboratories. Alaska State Virology Laboratory – Fairbanks. Anchorage State Public Health Laboratory – Anchorage. Jayme Parker, HCLD(ABB), PhD, MSPH, MB(ASCP). Word Bank. Control group. Epidemic. Experimental. group. Public health. Surveillance. Vaccine. Virus. an increase in the number of cases of a disease above what is normally expected . science of protecting and improving the health of people and their communities. Emilio Gonzales. Overview. Considerations for Influenza (Flu) Surveillance. Goals for the Upcoming Season and Year. Projected Timeframes. Considerations:. Respiratory Disease Surveillance. Structure of influenza surveillance reporter network. viruses. . . Swine influenza virus (SIV) is any strain of the . influenza family of viruses. that is . endemic. in . pigs. .. . As of 2009, the known SIV strains include . influenza C. and the subtypes of .