Introduction to Viruses 1
... Need a living cell in order to replicate copies of itself (require host cell ...
... Need a living cell in order to replicate copies of itself (require host cell ...
VIRAL - Orthomyxovirus type A
... •Several more recent breaks, including Mexico and Hong Kong. On January 22, 2012, China reported its second human death due to bird flu. Pandemic flu viruses have some avian flu virus genes and usually some human flu virus genes. Both H2N2 and H3N2 are pandemic strains. ...
... •Several more recent breaks, including Mexico and Hong Kong. On January 22, 2012, China reported its second human death due to bird flu. Pandemic flu viruses have some avian flu virus genes and usually some human flu virus genes. Both H2N2 and H3N2 are pandemic strains. ...
Our selections for Fall 2005
... – Main types of cells infected: T helper cells and dendritic cells (including macrophages, microglia) • Have CD4 and CCR5 glycoproteins on surface ...
... – Main types of cells infected: T helper cells and dendritic cells (including macrophages, microglia) • Have CD4 and CCR5 glycoproteins on surface ...
ppt version
... Influenza virus (-ssRNA) • The influenza HA spike protein is shaped like a ‘Toblerone’ chocolate bar and protrudes from the virus surface (500 spikes on each virion) • each spike composed of three identical subunits with a bulb-shaped hydrophilic portion furthest from the viral ...
... Influenza virus (-ssRNA) • The influenza HA spike protein is shaped like a ‘Toblerone’ chocolate bar and protrudes from the virus surface (500 spikes on each virion) • each spike composed of three identical subunits with a bulb-shaped hydrophilic portion furthest from the viral ...
Influenza Outbreaks and Cruise Ships
... 20-50 million people died worldwide. Many died a few days after infection and some died of complications later. This pandemic was unique because almost half the people that died were young, healthy adults. ...
... 20-50 million people died worldwide. Many died a few days after infection and some died of complications later. This pandemic was unique because almost half the people that died were young, healthy adults. ...
3 most common diseases!!! CORONARY DISEASE
... in teenagers and young adults. Swollen glands are a common feature of the infection. Glands in the front and side of the neck and behind the ears are often enlarged and tender. Glands in the armpit and groin might also be affected. Influenza Influenza, often referred to as 'the flu', is a respirator ...
... in teenagers and young adults. Swollen glands are a common feature of the infection. Glands in the front and side of the neck and behind the ears are often enlarged and tender. Glands in the armpit and groin might also be affected. Influenza Influenza, often referred to as 'the flu', is a respirator ...
Influenza
... Core dissembles, viral RNA and proteins are released, and viral RNA Polymerase makes mRNAs and ...
... Core dissembles, viral RNA and proteins are released, and viral RNA Polymerase makes mRNAs and ...
Preparing for the Next Influenza Pandemic
... from year to year within same HA/NA types. • Antigenic Shift: When two different viruses infect one host cell, their genes can mix and produce a different HA/NA type. Major antigenic variation: ...
... from year to year within same HA/NA types. • Antigenic Shift: When two different viruses infect one host cell, their genes can mix and produce a different HA/NA type. Major antigenic variation: ...
What New Zealanders need to know about bird flu
... Public lecture by Professor Robert G. Webster frs – Bird Flu Pioneer ...
... Public lecture by Professor Robert G. Webster frs – Bird Flu Pioneer ...
H1N1 Virus - Hopkinton School District
... • Subtype of the Influenza Virus • Respiratory virus that constantly changes • Mix of swine, human, and avian influenza ...
... • Subtype of the Influenza Virus • Respiratory virus that constantly changes • Mix of swine, human, and avian influenza ...
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.