what is the advantage of latency for a virus course hero

What is viral latency?

Dec 15, 2015 · What is the advantage of Latency for virus? Immune system ca nt tell the difference between it and the healthy cells. Immune system cant tell the difference between it and the healthy cells 29. Can genital herpes develop from an infection with KSHV? ... Course Hero is not sponsored or endorsed by any college or university. ...

What is the phenomenon of latency and reactivation in herpes simplex virus?

Apr 03, 2016 · What is the advantage of Latency for virus? ND10 domains from activating. 29. Can genital herpes develop from an infection with KSHV? - no. 30. Explain why some patients are resistant to HI – everybody has a different immune system working different ways. …

What are the consequences of a latent infection?

92 an extranet. The firewall is especially important for intranet networks that include extranet extensions. The intranet generally looks like a private version of the Internet. With tunneling, companies can send private messages through the public network while using special encryption/decryption and other security safeguards to connect one part of their intranet to …

Does viral latency predict Cervical cancer risk?

The state of latency occurs when a microbe's persistence in a host produces host damage without perturbing homeostasis sufficiently to cause clinical symptoms or disease. The mechanisms contributing to latency are diverse and depend on the nature of both the microbe and the host. Latency has advantages for both host and microbe.

What is the advantage of latency for a virus?

Proviral latency Advantages include automatic host cell division results in replication of the virus's genes, and the fact that it is nearly impossible to remove an integrated provirus from an infected cell without killing the cell.

What is latency in a virus?

When a virus is present in the body but exists in a resting (latent) state without producing more virus. A latent viral infection usually does not cause any noticeable symptoms and can last a long period of time before becoming active and causing symptoms.

What causes latency in viruses?

In latent infection, the full viral genome is retained in the host cell, but its expression is dramatically restricted, such that few viral antigens and no viral particles are produced. To qualify as latency, this cryptic form of infection must display two additional properties: persistence and reversibility.

What viruses are latent?

Latent viral infections in humans include herpes simplex, varicella zoster, Epstein-Barr, human cytomegalovirus, adenovirus, and Kaposi's sarcoma. “It's very important to know what regulates the switch from the latent state to the lytic state, so that we can perhaps stop these infections from spreading,” Dr.Sep 5, 2018

What does latency mean?

Latency is a synonym for delay. In telecommunications, low latency is associated with a positive user experience (UX) while high latency is associated with poor UX. In computer networking, latency is an expression of how much time it takes for a data packet to travel from one designated point to another.

How long does clinical latency last?

Without treatment, this period of time can last anywhere from 2 to 15 years or more, depending on a variety of factors. As time goes on, the HIV replication will slowly win out over the CD4 cells, leading to a significant decrease in CD4 count over time.

Do you know any other common virus infections that can have latency?

Many viruses have a propensity to cause latent infections. The majority of these viruses are from the family of Herpesviridae: herpes simplex virus (HSV)-1, HSV-2, varicella zoster virus (VZV), Epstein–Barr virus (EBV), CMV, human herpesvirus (HHV)-6, HHV-7 and Kaposi's sarcoma-associated herpesvirus (KSHV/HHV)-8.

Which of the following is the best description of viruses?

virus. Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce.May 16, 2019

What is the most important factor for virus classification?

Because the viral genome carries the blueprint for producing new viruses, virologists consider it the most important characteristic for classification.Aug 7, 2009

What activates a virus?

Virus activation from a latent state is often the result of stimulation by mitogens, cytokines, or DNA-damaging agents.

Can viruses be dormant for years?

Some viruses, like the one that causes chickenpox, can lie dormant in the body for years and later spark another infection or even a different condition.Jun 29, 2021

What is latent viral infection?

A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which, after initial infection, proliferation of virus particles ceases. However, the viral genome is not eradicated. The virus can reactivate and begin producing large ...

What is the latent part of a virus?

Virus latency. Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant ( latent) within a cell, denoted as the lysogenic part of the viral life cycle. A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life ...

Does viral latency cause cold sores?

While viral latency exhibits no active viral shedding nor causes any pathologies or symptoms, the virus is still able to reactivate via external activators (sunlight, stress, etc) to cause an acute infection. In the case of herpes simplex virus, which generally infects an individual for life, a serotype of the virus reactivates occasionally to cause cold sores. Although the sores are quickly resolved by the immune system, they may be a minor annoyance from time to time. In the case of varicella zoster virus, after an initial acute infection ( chickenpox) the virus lies dormant until reactivated as herpes zoster .

What is episomal latency?

Episomal latency refers to the use of genetic episomes during latency. In this latency type, viral genes are stabilized, floating in the cytoplasm or nucleus as distinct objects, either as linear or lariat structures.

Can herpes cause cold sores?

In the case of herpes simplex virus, which generally infects an individual for life, a serotype of the virus reactivates occasionally to cause cold sores . Although the sores are quickly resolved by the immune system, they may be a minor annoyance from time to time.

What is a provirus?

A provirus is a virus genome that is integrated into the DNA of a host cell. Advantages include automatic host cell division results in replication of the virus's genes, and the fact that it is nearly impossible to remove an integrated provirus from an infected cell without killing the cell.

Can a virus cause cervical cancer?

This is also seen with infections of the human papilloma virus in which persistent infection may lead to cervical cancer as a result of cellular transformation. In the field of HIV research, proviral latency in specific long-lived cell types is the basis for the concept of one or more viral reservoirs, referring to locations (cell types or tissues) ...

Where do viruses live?

Such viruses probably reside inside cells, where they are protected from antibodies that cannot penetrate the cell membrane.

What is an inapparent infection?

Inapparent infections (those that do not cause specific signs and symptoms) often result after exposure to picornaviruses, influenza viruses, rhinoviruses, herpesviruses, and adenoviruses but less frequently to measles and chickenpox viruses. In cases of inapparent infection, long-lasting immunity develops, but only to the strain ...

Do monkeys have HIV?

Closely related viruses of monkeys and cats cause similar diseases. HIV is transmitted by blood and other body fluids and infects primarily helper T lymphocytes and other cells with CD4 surface receptors (cell surface proteins that react with antigens), to which the virus binds .