What type of virus is the influenza virus?

Innehållsförteckning

What type of virus is the influenza virus?

What type of virus is the influenza virus?

Influenza B virus (IBV) and Influenza C virus (ICV) primarily infect humans, and Influenza D virus (IDV) is found in cattle and pigs....
Influenza
CausesInfluenza viruses
PreventionHand washing, flu vaccines
MedicationAntiviral drugs such as oseltamivir
Frequency3–5 million severe cases per year

Is influenza virus A RNA virus?

Coronaviruses and influenza viruses are both enveloped, single-stranded RNA viruses, and both are encapsidated by nucleoprotein. However, the genomes of these 2 viruses differ in polarity and segmentation. Influenza virus is comprised of 8 single-stranded, negative-sense, viral RNA segments.

What type of virus is influenza retrovirus?

Influenza is an RNA virus that causes mild to severe respiratory symptoms in humans and other hosts.

Is influenza A DNA or RNA virus?

All influenza viruses consist of single-stranded RNA as opposed to dual-stranded DNA. The RNA genes of influenza viruses are made up of chains of nucleotides that are bonded together and coded by the letters A, C, G and U, which stand for adenine, cytosine, guanine, and uracil, respectively.

What is the classification of influenza?

Influenza viruses are categorized as types A, B, C, and D. These major types generally produce similar symptoms but are completely unrelated antigenically, so that infection with one type confers no immunity against the others.

Is the influenza virus DNA or RNA?

All influenza viruses consist of single-stranded RNA as opposed to dual-stranded DNA.

Is influenza lytic or lysogenic?

3.9, fig. 3.16 for a diagram of how influenza virus buds through the host cell membrane.) (1) The cell may lyse or be destroyed. This is usually called a lytic infection and this type of infection is seen with influenza and polio.

Why is influenza A retrovirus?

The term "retrovirus" means it behaves backwards from the original way that we all think about genetics, which is that DNA makes RNA, and RNA makes protein. So retroviruses have an RNA genome, and when they get into cells that RNA is reverse-transcribed into DNA, so it goes backwards.

How many genes does influenza virus have?

With the HA and NA genes, the influenza A genome contains eight genes encoding 11 proteins. These proteins include three RNA polymerases that function together as a complex required by the virus to replicate its RNA genome.

What are the 3 types of influenza?

What Are the Different Types of Flu? There are three types of flu viruses: A, B, and C. Type A and B cause the annual influenza epidemics that have up to 20% of the population sniffling, aching, coughing, and running high fevers. Type C also causes flu; however, type C flu symptoms are much less severe.

Relaterade inlägg: