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... ­ the most common ​ viruses​  are the flu and the common cold  ­ viruses alone are inactive; they need living cells to reproduce  ­ after a virus gets into a cell, known as the host cell, the virus will take over that cell in  order to make more viruses  ­ viruses usually run their course and eventu ...
African Horse Sickness
African Horse Sickness

... African horse sickness (AHS) is a peracute, acute, subacute or mild infectious but non-contagious disease of equids caused by African horse sickness virus (AHSV). The virus is classified in the genus Orbivirus of the family Reoviridae, of which there are nine serotypes, all transmitted by Culicoides ...
Lecture Outline - Biology Junction
Lecture Outline - Biology Junction

... Viral cDNA is integrated into host DNA and is replicated as host DNA replicates. c. Viral DNA is transcribed; new viruses are produced by biosynthesis and maturation; release is by budding. G. Viral Infections of Special Concern 1. Viruses cause infectious diseases in plants and animals, including h ...
BIOL260Exam2 review
BIOL260Exam2 review

... 3. What are some characteristics of viruses? 4. How are Chlamydia and Rickettsia similar to viruses? Are viruses considered living? 5. Describe the chemical composition of a typical virus. (capsid coat, nucleic acid etc) 6. Explain the steps in the life cycle of T4 (lytic/virulent) bacteriophage. Wh ...
1. Is a virus ALIVE?
1. Is a virus ALIVE?

... becomes part of the host cell's DNA, and it does not immediately take over host cell. The actual replication is delayed. Viruses that do not cause an immediate infection are referred to as temperate or latent. They exist as a prophage and can be dormant for years. The virus can become active (virule ...
Viruses
Viruses

... Importance of virology • Stopping of spreading of dangerous or pandemic incectious diseases • Research of common diseases • New treatment approach – gene therapy, nanotechnologies • Metodical advances in molecular biology • Informations in ecology and evolution biology ...
Ch 24 - Bacteria
Ch 24 - Bacteria

...  Flu viruses (influenza) invade, most destroyed by immune systems/few escape destruction possibly due to mutation, invade cells, produce thousands  These mutations make it difficult for immune system to recognize it immediately (eventually will) and many new viruses form  Difficult to develop vac ...
MS Word Format
MS Word Format

... have less than 10 genes and have just the information needed to reproduce. Because of their simplicity and the methods they use to reproduce, errors are made easily. Viruses tend to evolve and change much more quickly than cells. Viruses can not reproduce on their own. They must infect cells and use ...
Viruses​​and Prions - Pandem-Sim
Viruses​​and Prions - Pandem-Sim

... These five basic steps take place in all viral replication, but different viruses accomplish them in slightly different ways. Some viruses enter the host nucleus and use the cell’s structures to replicate, but stay separate from the cell’s genetic material. Adenovirus is an example of a DNA virus th ...
you can`t inherit cancer
you can`t inherit cancer

... surrounding healthy cells. After about a million divisions, there's a good chance that one of the new cells will have mutated further. This cell, now carrying two mutant genes, could have an altered appearance and be even more prone to reproduce unchecked. ...
Ch. 19 (Part I): Bacteria (Monera)
Ch. 19 (Part I): Bacteria (Monera)

... -From what you know about viruses and biology, are viruses living? Structure of Viruses Virus: -Smaller than the smallest cell (polio = 20 nm diameter [10-9 meters]) -They do posses structural parts: Capsid: -Nucleic acid may either be DNA or RNA, depending on the virus type! -Viruses have fewer gen ...
Virus 1+2-summary+quiz2017-03-04 06:551.4 MB
Virus 1+2-summary+quiz2017-03-04 06:551.4 MB

... An 8 year old child is presented with fever, malaise and cough he visits an E.R doctor in the hospital , the doctor suspects a viral infection he later diagnosed him with influenza. Based on this info answer the following… ...
chapter 4 review
chapter 4 review

... Pathogens Disease causing virus or bacteria Something that makes you sick (see list of differences) Bacterial diseases Strep throat, ear infections, pneumonia, meningitis Antibiotics Medicine to help fight bacteria Original one was Penicillin Ways to prevent growth of harmful bacteria Wash hands, re ...
Bacteria vs. Virus KWL and Article
Bacteria vs. Virus KWL and Article

... Streptococcus pneumoniae (Strep Throat, Meningitis, and Pneumonia) ...
Cancer- Powerpoint
Cancer- Powerpoint

... surrounding healthy cells. After about a million divisions, there's a good chance that one of the new cells will have mutated further. This cell, now carrying two mutant genes, could have an altered appearance and be even more prone to reproduce unchecked. ...
Viruses and Bacteria
Viruses and Bacteria

... Viruses Replicate Inside Living Cells • Viruses lack enzymes needed for metabolism and have no structures to make proteins • Use cells own machinery to replicate viruses • Pathogen: agent that causes disease – Viruses damage cells during replication ...
Preventable Feline Diseases
Preventable Feline Diseases

... well as dogs and cats. Rabies affects the central nervous system and brain causing a behavioral change and leads to death. Once symptoms appear the disease is always fatal. While there is an effective post exposure treatment for humans, there is none for animals. City laws usually require dogs to be ...
Human Corona Virus
Human Corona Virus

... The World Health Organization has confirmed that human corona virus infection, which originated in Saudi Arabia in April of 2012, is now linked to deaths throughout the Middle East and in several European nations. The virus is part of a family of coronaviruses that cause illnesses ranging from a col ...
Title: What is Cancer?
Title: What is Cancer?

... accumulates a number of mutations, this mutated cell can develop the ability to divide without control. The abnormal cells may also spread to other parts of the body through the blood. This explains why cancer can spread around the body is a process called metastases. Cancer is a common illness with ...
Applying Physics to Patient Care - Part 1
Applying Physics to Patient Care - Part 1

... – Accelerate electrons, collide with high-Z material – Convert kinetic energy to radiation ...
Immune System
Immune System

... virus does not overpower , the fighting will be over, and the person will no longer be sick. ...
IMMUNE RESPONSE TO INFECTIOUS DISEASE
IMMUNE RESPONSE TO INFECTIOUS DISEASE

... Jasminia Nuesa ...
Virus PowerPoint
Virus PowerPoint

... host cell gets so full of new viruses that it bursts, releasing viruses ...
Viruses
Viruses

... Viruses are considered to be nonliving particles, although they are still capable of evolving. They lack many of the defining characteristics of life. Viruses do, however, have genetic material (DNA or RNA), which is housed within a capsid and sometimes within an envelope. Viruses require a host cel ...
4. Virus Reproduction: Basic reproduction
4. Virus Reproduction: Basic reproduction

... Viruses are very specific. That is, they only infect a very limited range of species and target certain organs and cells. These specific species/organs/cells are referred to the virus’ host range. Using the information found on this website, fill in the following chart for the given viruses. Name of ...
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Oncolytic virus

An oncolytic virus is a virus that preferentially infects and kills cancer cells. As the infected cancer cells are destroyed by lysis, they release new infectious virus particles to help destroy the remaining tumour. Oncolytic viruses are thought not only to cause direct destruction of the tumour cells, but also to stimulate host anti-tumour immune responses.The potential of viruses as anti-cancer agents was first realised in the early twentieth century, although coordinated research efforts did not begin until the 1960s. A number of viruses including adenovirus, reovirus, measles, herpes simplex, Newcastle disease virus and vaccinia have now been clinically tested as oncolytic agents. Most current oncolytic viruses are engineered for tumour selectivity, although there are naturally occurring examples such as reovirus and the SVV-001 Seneca Valley virus, resulting in clinical trials.As of 2011, only limited human trials had been performed.Nevertheless, the drug talimogene laherparepvec (OncoVex, T-VEC) recently (Jan 2012) reported the first positive interim Phase III clinical trial results for an oncolytic virus, making it likely that it will also be the first one approved for use (for the treatment of advanced melanoma). However, skeptics have questioned the clinical relevance of this interim data citing that the awaited overall survival data will be the final judgement and that it is likely that patient benefit will be maximised in combination with other therapies, which this trial did not test. 2015 update: In a combined decision, members of the FDA’s Oncologic Drugs Advisory Committee (ODAC) and Cellular, Tissue and Gene Therapies Advisory Committee (CTGTAC) voted 22-1 to recommend approval of the oncolytic immunotherapy talimogene laherparepvec (T-VEC) as a treatment for patients with advanced melanoma. A final approval decision from the FDA is scheduled by October 27, 2015. Approved in Latvia oncolytic virus RIGVIR was registered in Georgia in February 2015. Melanoma Research published new data on RIGVIR efficacy, showing that early stage melanoma patients treated with oncolytic virus RIGVIR had 4.39–6.57-fold lower mortality than those, who according to melanoma treatment guidelines did not receive virotherapy and were only observed.
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