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SARS and Emerging Infectious Diseases: A Challenge to Place
SARS and Emerging Infectious Diseases: A Challenge to Place

... e-mail message describing an infectious disease in Guangdong Province with more than 100 deaths. On 11 February, the Chinese Ministry of Health officially confirmed the reports to the WHO, and on the following day reported that the outbreak dated back to 16 November 2002, that influenza had been rul ...
Infectious disease
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... resistance in Shigella. A systematic review was constructed based on MEDLINE and EMBASE databases. Random-effect models or fixed-effect models were used based on P value considering the possibility of heterogeneity between studies for meta-analysis. Data manipulation and statistical analyses were pe ...
Introduction to Virology - cmb
Introduction to Virology - cmb

... Nowadays, viruses have really an impact on mankind? The facts: viral diseases exert a shocking toll on the developing world.  Over 2.5 million people die each year from AIDS, mostly in sub-Saharan Africa.  More than 3 billion people are at risk of infection with dengue fever.  Rotavirus, a cause ...
Development of Dot – Enzyme Linked Immunosorbent Assay for
Development of Dot – Enzyme Linked Immunosorbent Assay for

... of large flocks. There is a need for a simple, rapid yet accurate method of diagnosis that can be performed at farm level. Hence, an immunocomb based dot –ELISA was developed with specially designed trough was developed to assess the antibody status for IBD, HPS and CAV in single test sera. 2. MATER ...
SRS-02 BioSafety Policy - Cleveland VA Medical Research and
SRS-02 BioSafety Policy - Cleveland VA Medical Research and

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Utilization of the respiratory virus multiplex reverse transcription
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Long-term survival of New Zealand rabbit haemorrhagic disease
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Production of infectious swine vesicular disease virus from cloned

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Rationing Vaccine During An Avian Influenza Pandemic: Why It Won
Rationing Vaccine During An Avian Influenza Pandemic: Why It Won

... mutated influenza strain remains to be seen. Preliminary studies indicate that the generic vaccine is effective but only at extremely high doses — a result that does not bode well for widespread distribution during a pandemic [3]. One authoritative source estimates that, during the following six mon ...
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modeling seasonality and viral mutation in an influenza pandemic

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Distribution of Japanese encephalitis in Asia (1970

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Introduction to DNA (Deoxyribonucleic acid)

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... • Genetic engineering techniques have been used to produce vaccines which use only the parts of an organism which stimulate a strong immune response. To create a subunit vaccine, researchers isolate the gene or genes which code for appropriate subunits from the genome of the infectious agent. “This ...
Ebola Virus Disease - International Scientific Forum on Home Hygiene
Ebola Virus Disease - International Scientific Forum on Home Hygiene

... People most at risk are health workers or the family caring for an infected person. This is because the more often a person is in contact with an infected person or infected material from that person, the greater the risk. The disease can spread quickly within health care settings when hospital staf ...
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... Massachusetts, Oregon, Washington). In late 1970s, the Sheep Pen Hill disease was observed in New Jersey and later considered as being caused by a particular strain of Blueberry scorch carlavirus. The virus was first characterized in highbush blueberries (V. corymbosum) in Washington in 1980. In 200 ...
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... 12. The proteins in the coat of the virus will fit only with certain proteins on the surface of a cell. 13. After a hidden virus enters a host cell, its genetic material becomes part of the cell’s genetic material. When the host cell divides, the virus’s genetic material is copied along with the hos ...
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Emerging and re-emerging infections

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Porcine reproductive and respiratory syndrome (PRRS)
Porcine reproductive and respiratory syndrome (PRRS)

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On the concept and elucidation of endogenous retroviruses
On the concept and elucidation of endogenous retroviruses

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Viral Infections In Which Cardiovascular Manifestations Predominate
Viral Infections In Which Cardiovascular Manifestations Predominate

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Influenza A virus



Influenza A virus causes influenza in birds and some mammals, and is the only species of influenza virus A. Influenza virus A is a genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon. Some isolates of influenza A virus cause severe disease both in domestic poultry and, rarely, in humans. Occasionally, viruses are transmitted from wild aquatic birds to domestic poultry, and this may cause an outbreak or give rise to human influenza pandemics.Influenza A viruses are negative-sense, single-stranded, segmented RNA viruses.The several subtypes are labeled according to an H number (for the type of hemagglutinin) and an N number (for the type of neuraminidase). There are 18 different known H antigens (H1 to H18) and 11 different known N antigens (N1 to N11). H17 was isolated from fruit bats in 2012. H18N11 was discovered in a Peruvian bat in 2013.Each virus subtype has mutated into a variety of strains with differing pathogenic profiles; some are pathogenic to one species but not others, some are pathogenic to multiple species.A filtered and purified influenza A vaccine for humans has been developed, and many countries have stockpiled it to allow a quick administration to the population in the event of an avian influenza pandemic. Avian influenza is sometimes called avian flu, and colloquially, bird flu. In 2011, researchers reported the discovery of an antibody effective against all types of the influenza A virus.
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