virus - DrMinkovskyScienceWiki
... • Too small for the light microscope • Range from about 20 to 200 nm (0.02-0.2 µm) Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... • Too small for the light microscope • Range from about 20 to 200 nm (0.02-0.2 µm) Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
A Tragic Side Effect of the Bird Flu Pandemic Paranoia
... influenza must undergo a series of mutations or a large genetic change to acquire the ability of human‐to‐human transmission. The potential for genetic mutation associated with exchange of genetic information between strains is higher when an animal or human is simultaneously infected with two di ...
... influenza must undergo a series of mutations or a large genetic change to acquire the ability of human‐to‐human transmission. The potential for genetic mutation associated with exchange of genetic information between strains is higher when an animal or human is simultaneously infected with two di ...
Virus Diseases - Mrothery.co.uk
... Electron micrograph of Influenza virions. Influenza virions contain RNA molecules surrounded by a viral proteins & a layer of membrane taken from the infected host cell. The influenza virus outer surface has spikes which consist of two virus encoded proteins which are important for entry into host c ...
... Electron micrograph of Influenza virions. Influenza virions contain RNA molecules surrounded by a viral proteins & a layer of membrane taken from the infected host cell. The influenza virus outer surface has spikes which consist of two virus encoded proteins which are important for entry into host c ...
Viruses - SPS186.org
... Step 2: virus injects nucleic acid into host cell Step 3: viral DNA or RNA takes over cell (like controlling the factory) Step 4: mRNA of host cell directs synthesis of viral ...
... Step 2: virus injects nucleic acid into host cell Step 3: viral DNA or RNA takes over cell (like controlling the factory) Step 4: mRNA of host cell directs synthesis of viral ...
Viruses and Evolution Student Recording Sheet
... b. Another way is by one viral strain jumping from one kind of animal such as a bird to individuals of different species without undergoing any genetic change. If the virus can reproduce and infe ...
... b. Another way is by one viral strain jumping from one kind of animal such as a bird to individuals of different species without undergoing any genetic change. If the virus can reproduce and infe ...
Blood Borne Pathogens
... Diseases * Micro-organisms present in human blood that can cause disease Viruses, bacteria, parasites, fungi * Primary workplace pathogens Human immunodeficiency virus (HIV) Does not survive long outside the body No cure Hepatitis B virus (HBV) 1 million people infected No cure Can survive outside ...
... Diseases * Micro-organisms present in human blood that can cause disease Viruses, bacteria, parasites, fungi * Primary workplace pathogens Human immunodeficiency virus (HIV) Does not survive long outside the body No cure Hepatitis B virus (HBV) 1 million people infected No cure Can survive outside ...
Student Virus Notes
... 2. Classify each statement as TRUE or FALSE, and identify which statement supports the view of most biologists that viruses are nonliving. A. ...
... 2. Classify each statement as TRUE or FALSE, and identify which statement supports the view of most biologists that viruses are nonliving. A. ...
Viruses - North Mac Schools
... • Not viruses because they lack nucleic acid • Composed of single protein- PrP – All mammals contain a gene that codes for the a.a. sequence for cellular PrP ...
... • Not viruses because they lack nucleic acid • Composed of single protein- PrP – All mammals contain a gene that codes for the a.a. sequence for cellular PrP ...
View - merial avian forum 2014
... RNA viral diversity & evolution • Large numbers of new progeny viruses are produced during each round of viral replication • Each round of viral replication therefore produces thousands of co‐existing mutants • Viral population ‐ swarm ‐ of quasispecies • Mutations may provide a selective advant ...
... RNA viral diversity & evolution • Large numbers of new progeny viruses are produced during each round of viral replication • Each round of viral replication therefore produces thousands of co‐existing mutants • Viral population ‐ swarm ‐ of quasispecies • Mutations may provide a selective advant ...
PPT File
... - precise 5’ and 3’ ends are required for replication and packaging of the genomic RNA - the viral RNA polymerase is essential for transcribing both mRNA and complementary, positive-sense antigenomic template RNA - both genomic and antigenomic RNAs exist as viral ribonucleoprotein (RNP) complexes In ...
... - precise 5’ and 3’ ends are required for replication and packaging of the genomic RNA - the viral RNA polymerase is essential for transcribing both mRNA and complementary, positive-sense antigenomic template RNA - both genomic and antigenomic RNAs exist as viral ribonucleoprotein (RNP) complexes In ...
Biotechnology Unit: Viruses
... allow for rapid evolution and acquisition of new phenotypes. 2. Virus replication allows for mutations to occur through usual host pathways. 3. RNA viruses lack replication error-checking mechanisms, and thus have higher rates of evolution. 4. Related viruses can combine/recombine information if the ...
... allow for rapid evolution and acquisition of new phenotypes. 2. Virus replication allows for mutations to occur through usual host pathways. 3. RNA viruses lack replication error-checking mechanisms, and thus have higher rates of evolution. 4. Related viruses can combine/recombine information if the ...
Avian Influenza Virus FAQ - Environmental Health and Safety
... Avian influenza (AI) is an infectious disease of birds caused by the type A strain of the influenza virus. AI is a highly contagious disease and some strains can cause high mortality in poultry. Influenza A virus in the natural environment is generally spread by ingestion or inhalation. The virus is ...
... Avian influenza (AI) is an infectious disease of birds caused by the type A strain of the influenza virus. AI is a highly contagious disease and some strains can cause high mortality in poultry. Influenza A virus in the natural environment is generally spread by ingestion or inhalation. The virus is ...
Unknown Viruses Dr. Robert Gallo, Director, Institute of Human
... Dr. Gallo developed all of the classic West Nile symptoms- chills, fever, loss of appetite, nausea, drowsiness, aches and pains, and tremendous fatigue. As the symptoms persisted, he had himself tested for the infection. A fellow doctor, Niel Constantine, from the Institute of Human Virology, drew h ...
... Dr. Gallo developed all of the classic West Nile symptoms- chills, fever, loss of appetite, nausea, drowsiness, aches and pains, and tremendous fatigue. As the symptoms persisted, he had himself tested for the infection. A fellow doctor, Niel Constantine, from the Institute of Human Virology, drew h ...
Microbes and Diseases Unit Test
... A) Chemistry B) Bacillus C) Microbiology D) Pandemic _____ 19. An epidemic that spreads across a large area, like a continent A) Coccus B) Epidemic C) Carrier D) Pandemic _____ 20. An organism composed (made up) of only one cell A) Spirochete B) Microbiology C) Spirillum D) Unicellular _____ 21. A b ...
... A) Chemistry B) Bacillus C) Microbiology D) Pandemic _____ 19. An epidemic that spreads across a large area, like a continent A) Coccus B) Epidemic C) Carrier D) Pandemic _____ 20. An organism composed (made up) of only one cell A) Spirochete B) Microbiology C) Spirillum D) Unicellular _____ 21. A b ...
Biotechnology - Viruses - Madison County Schools
... allow for rapid evolution and acquisition of new phenotypes. 2. Virus replication allows for mutations to occur through usual host pathways. 3. RNA viruses lack replication error-checking mechanisms, and thus have higher rates of evolution. 4. Related viruses can combine/recombine information if the ...
... allow for rapid evolution and acquisition of new phenotypes. 2. Virus replication allows for mutations to occur through usual host pathways. 3. RNA viruses lack replication error-checking mechanisms, and thus have higher rates of evolution. 4. Related viruses can combine/recombine information if the ...
VIRUS WEB QUEST
... 4. Viruses can take the following shapes. Use google images to find and draw each and give an example of a disease caused by each: ...
... 4. Viruses can take the following shapes. Use google images to find and draw each and give an example of a disease caused by each: ...
WRL3729.tmp
... virus strains, initially of low pathogenicity, can rapidly mutate (within 6 to 9 months) into a highly pathogenic strain if allowed to circulate in poultry populations. Can a pandemic be averted? No one knows for sure. Influenza viruses are highly unstable and their behaviour defies prediction. Howe ...
... virus strains, initially of low pathogenicity, can rapidly mutate (within 6 to 9 months) into a highly pathogenic strain if allowed to circulate in poultry populations. Can a pandemic be averted? No one knows for sure. Influenza viruses are highly unstable and their behaviour defies prediction. Howe ...
Viral RAFT assignment
... 5 MODES OF TRANSMISSION (in other words “How do you get it?” , inhalation, ingestion , vector, contact-describe whichever fits) 5 SYMPTOMS OR EFFECTS (what happens to the host and the host cells) 10 RESPONSE OF IMMUNE SYSTEM ( Use Ch. 40 and other resources to explain how your immune system attacks ...
... 5 MODES OF TRANSMISSION (in other words “How do you get it?” , inhalation, ingestion , vector, contact-describe whichever fits) 5 SYMPTOMS OR EFFECTS (what happens to the host and the host cells) 10 RESPONSE OF IMMUNE SYSTEM ( Use Ch. 40 and other resources to explain how your immune system attacks ...
Common Cold vs. Influenza (Flu)
... »» Rhinoviruses (more than 100 recognized serotypes) are the major known agents in the fall season. »» Coronaviruses also responsible for winter and early spring colds. »» Infectious agents are unidentified in over half of the cases. ...
... »» Rhinoviruses (more than 100 recognized serotypes) are the major known agents in the fall season. »» Coronaviruses also responsible for winter and early spring colds. »» Infectious agents are unidentified in over half of the cases. ...
Influenza factsheet schools and special schools 2014
... Influenza or 'flu' is a viral infection that mainly affects the nose, throat and the lungs. There are two main types of flu that cause infection; influenza A and influenza B. Influenza A is usually a more severe infection than influenza B and although influenza B tends to occur most often in childre ...
... Influenza or 'flu' is a viral infection that mainly affects the nose, throat and the lungs. There are two main types of flu that cause infection; influenza A and influenza B. Influenza A is usually a more severe infection than influenza B and although influenza B tends to occur most often in childre ...
Fact sheet - Seasonal/Avian/Pandemic influenza
... influenza virus might mix and result in a new strain of influenza virus that can be easily passed from person to person. This might trigger an ‘influenza pandemic’, where the disease spreads rapidly around the world, infecting many people. ...
... influenza virus might mix and result in a new strain of influenza virus that can be easily passed from person to person. This might trigger an ‘influenza pandemic’, where the disease spreads rapidly around the world, infecting many people. ...
The Business Case for Worksite Vaccination (PDF)
... If you’re not one of them, consider giving it a try. Here’s why: ...
... If you’re not one of them, consider giving it a try. Here’s why: ...
Influenza A virus
Influenza A virus causes influenza in birds and some mammals, and is the only species of influenza virus A. Influenza virus A is a genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon. Some isolates of influenza A virus cause severe disease both in domestic poultry and, rarely, in humans. Occasionally, viruses are transmitted from wild aquatic birds to domestic poultry, and this may cause an outbreak or give rise to human influenza pandemics.Influenza A viruses are negative-sense, single-stranded, segmented RNA viruses.The several subtypes are labeled according to an H number (for the type of hemagglutinin) and an N number (for the type of neuraminidase). There are 18 different known H antigens (H1 to H18) and 11 different known N antigens (N1 to N11). H17 was isolated from fruit bats in 2012. H18N11 was discovered in a Peruvian bat in 2013.Each virus subtype has mutated into a variety of strains with differing pathogenic profiles; some are pathogenic to one species but not others, some are pathogenic to multiple species.A filtered and purified influenza A vaccine for humans has been developed, and many countries have stockpiled it to allow a quick administration to the population in the event of an avian influenza pandemic. Avian influenza is sometimes called avian flu, and colloquially, bird flu. In 2011, researchers reported the discovery of an antibody effective against all types of the influenza A virus.