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The bacteria are mesophilic and grow best at temperatures between 35 and 37 °C. [1] H. influenzae was first described in 1893 [2] [3] by Richard Pfeiffer during an influenza pandemic [4] when he incorrectly identified it as the causative microbe, which is why the bacteria was given the name "influenzae".
The Haemophilus influenza genome was one of the first organism genomes sequenced in 1995 by J. Craig Venter and Hamilton Smith using whole genome shotgun sequencing. [ 17 ] [ 15 ] Since then, newer and more efficient high-throughput sequencing, such as Next Generation Genomic Sequencing (NGS) and Single-Cell Genomic Sequencing, have been ...
Bacterial genomes are generally smaller and less variant in size among species when compared with genomes of eukaryotes.Bacterial genomes can range in size anywhere from about 130 kbp [1] [2] to over 14 Mbp. [3]
Influenza viruses A and B are estimated to have diverged from a single ancestor around 4,000 years ago, while the ancestor of influenza viruses A and B and the ancestor of influenza virus C are estimated to have diverged from a common ancestor around 8,000 years ago. [40] Outbreaks of influenza-like disease can be found throughout recorded history.
They have a total genome length that is 10,000–14,600 nucleotides (nt). [7] The influenza A genome, for instance, has eight pieces of segmented negative-sense RNA (13.5 kilobases total). [8] The best-characterised of the influenzavirus proteins are hemagglutinin and neuraminidase, two large glycoproteins found on the outside of the viral ...
The first free-living organism to have its genome completely sequenced was the bacterium Haemophilus influenzae, in 1995. In 1996 Saccharomyces cerevisiae (baker's yeast) was the first eukaryote genome sequence to be released and in 1998 the first genome sequence for a multicellular eukaryote, Caenorhabditis elegans, was released.
Influenza viruses: You’re likely familiar with the seasonal flu, but in the last century there have also been four influenza pandemics: the infamous Spanish Flu pandemic in 1918, the H2N2 flu ...
Influenza A virus and influenza B virus circulate in humans and cause seasonal epidemics, and influenza C virus causes a mild infection, primarily in children. Influenza D virus can infect humans but is not known to cause illness. In humans, influenza viruses are primarily transmitted through respiratory droplets from coughing and sneezing.