The influenza virion as the infectious particle is called is roughly spherical. Influenza a viruses can be broken down into sub types depending on the genes that make up the surface proteins.
Types a and b.
Influenza virus anatomy. Influenza yang lebih dikenal dengan sebutan flu merupakan penyakit menular yang disebabkan oleh virus rna dari familia orthomyxoviridae virus influenza yang menyerang unggas dan mamalia gejala yang paling umum dari penyakit ini adalah menggigil demam nyeri tenggorokan nyeri otot nyeri kepala berat batuk kelelahan dan rasa tidak nyaman secara umum. Structure of influenza virus influenza virion are usually spherical diameter 80 110 nm. The influenza virion is an enveloped virus that derives its lipid bilayer from the plasma membrane of a host cell.
For more anatomy content please follow us and visit our website. We are pleased to provide you with the picture named influenza virus anatomy we hope this picture influenza virus anatomy can help you study and research. Human influenza a and b viruses cause seasonal epidemics of disease known as the flu season almost every winter in the united states.
Sometimes filamentous forms of the virus occur as well and are more common among some influenza strains than others. The relevance or presence of alternate gene products can vary. There are two main types of influenza flu virus.
Influenza a virus structure the entire influenza a virus genome is 13 588 bases long and is contained on eight rna segments that code for at least 10 but up to 14 proteins depending on the strain. Type a and b influenza virus consist of 8 pieces of segmented rna while type c influenza virus contains 7 segments which encode for 11 proteins ha na np m1 m2 ns1 nep pa pb1 pb1 pb2. It is an enveloped virus that is the outer layer is a lipid membrane which is taken from the host cell in which the virus multiplies.
Influenza virus contains negative sense single stranded rna ssrna genome which is segmented. There are four types of influenza viruses. The structure of the influenza virus see figure 1 is somewhat variable but the virion particles are usually spherical or ovoid in shape and 80 to 120 nanometers in diameter.
Influenza a viruses are the only influenza viruses known to cause flu pandemics i e global epidemics of flu disease. An enveloped virus the outer layer is a lipid membrane which is taken from the host cell. Inserted into the lipid membrane are spikes about 10 nm long which are glycoproteins known as ha hemagglutinin and na neuraminidase.
The influenza a and b viruses that routinely spread in people human influenza viruses are responsible for seasonal flu epidemics each year. Influenza a influenza a type a viruses are divided into types based on differences in two viral surface proteins called the hemagglutinin h and the neuraminidase n influenza type a viruses undergo two kinds of changes. A b c and d.
Pin On Public Health Infectious Disease
0 comments:
Post a Comment