Question: What Cells Does The Influenza Virus Infect?

What cells do viruses infect?

This devastating virus infects healthy cells including T lymphocytes, dendritic cells and macrophages (cells of the immune system), and the cells in the central nervous system.

These diverse range of cells have one factor in common – they all express the protein, CD4, on the cellular membrane..

Can NK cells kill viruses?

In the host innate immunity, NK cells are key effector cells and can rapidly destroy virus-infected cells during the acute infection, limiting viral replication and transmission. However, in this study, we demonstrated that influenza virus directly infected and killed NK cells to restrain their activity.

What is the incubation period for flu?

The incubation period of influenza is 2 days long on average but may range from 1 to 4 days in length.

What disease does influenza cause?

What is Influenza (Flu)? Flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent flu is by getting a flu vaccine each year.

How does influenza infect cells?

Influenza viruses bind to receptors containing sialic acid on the cell surface. Virus particles are then endocytosed and enter early endosomes. Subsequently the viruses are trafficked to late endosomes where the low pH triggers viral fusion.

What type of cells do influenza B infect?

Influenza virus replicates in the epithelial cells throughout the respiratory tree, with virus being recoverable from both the upper and lower respiratory tract of people naturally or experimentally infected (2).

What part of the body does influenza infect?

Influenza virus causes an infection in the respiratory tract, or nose, throat and lungs. The virus is inhaled or transmitted, usually via your fingers, to the mucous membranes of the mouth, nose or eyes.

Does influenza kill cells?

However, in the case of severe influenza virus infection, dead cells can be observed on the airways and alveoli of the lungs of infected donors. Influenza virus targets mainly airway and alveolar epithelial cells in vivo [4,5].

What kills the flu virus in the body?

A fever kills the virus by making your body hotter than normal. That also helps germ-killing proteins in your blood get where they need to be more quickly. So if you run a slight fever for a day or two, you could get well faster. Coughing is another symptom with purpose.