Diffrent kinds of viruses

The Three Categories of Viruses There are three different virus types that are made distinct by their shape. How a Virus Spreads The first thing a virion does is enter a cell and becomes a virus.

Treating Viruses Antiviral drugs can treat viruses by inhibiting viral development and slowing down disease progression. The Role of Advanced Practice Nurses Worldwide Around the world, nurses contribute to the prevention, management and containment of viral outbreaks by caring for infected patients and educating the public on prevention strategies. The Invaluable Contribution of Nurses Across a variety of roles and specializations, nursing professionals fight viruses in numerous ways.

Slowing the Spread Advanced practice nurses are uniquely qualified to conduct research and assist government leaders and public health officials in creating an informed response to viral outbreaks. Prepare to become a leader in nursing with your D. Get Program Details. In North Dakota, we do work worth doing. Join us, and you can do work worth doing, too. This will take only a moment. What program are you most interested in?

Please select an option D. Advanced Practice Nursing D. Leadership Undecided. Please select an option Yes No Currently Obtaining. Next Step We value your privacy. Who is this brochure for? We value your privacy. Infections from viruses are highly infectious. They can infect human cells and animals, but they cannot carry out essential life-sustaining functions without their host cells.

There are many other species of viruses, but they are all important in our world. The most common type of virus is the coronavirus, which has spread throughout the world and garnered attention.

A viral infection can be either fatal or harmless, and can be avoided with vaccines. If a virus is not a threat to humans, it can be transmitted between different species.

A true virus is a microbe that is composed of a DNA-like substance, known as nucleic acid. A true virus has a unique protein that it synthesizes. Some viruses also contain internal proteins. These proteins act as enzymes during viral nucleic acid synthesis. Some viruses are classified as viroids, which contain only a DNA-like structure.

A loving relationship is about the trust that your partner wants to be with you. Love is a choice. Note that clades and sub-clades that are genetically different from others are not necessarily antigenically different. These proteins act as antigens. Antigens are molecular structures on the surface of viruses that are recognized by the immune system and can trigger an immune response such as antibody production.

Therefore, for antigenically different viruses, immunity developed against one of the viruses will not necessarily protect against the other virus as well. Influenza A H3N2 viruses also change both genetically and antigenically. Influenza A H3N2 viruses have formed many separate, genetically different clades in recent years that continue to co-circulate.

Similar to influenza A viruses, influenza B viruses can then be further classified into specific clades and sub-clades. Influenza B viruses generally change more slowly in terms of their genetic and antigenic properties than influenza A viruses, especially influenza A H3N2 viruses. Influenza surveillance data from recent years shows co-circulation of influenza B viruses from both lineages in the United States and around the world.

However, the proportion of influenza B viruses from each lineage that circulate can vary by geographic location and by season. Figure 2 — This image shows how influenza viruses are named. The name starts with the virus type, followed by the place the virus was isolated, followed by the virus strain number often a sample identifier , the year isolated, and finally, the virus subtype. CDC follows an internationally accepted naming convention for influenza viruses.

This convention was accepted by WHO in and published in February in the Bulletin of the World Health Organization, 58 4 see A revision of the system of nomenclature for influenza viruses: a WHO Memorandum pdf icon[ KB, 7 pages]external icon pdf icon external icon.

The approach uses the following components:. Getting a flu vaccine can protect against these viruses as well as additional flu viruses that are antigenically similar to the viruses used to make the vaccine.

Seasonal flu vaccines do not protect against influenza C or D viruses or against zoonotic animal-origin flu viruses that can cause human infections, such as variant or avian flu viruses.

In addition, flu vaccines will NOT protect against infection and illness caused by other viruses that also can cause influenza-like symptoms. There are many other viruses besides influenza that can result in influenza-like illness ILI that spread during flu season.

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