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... I. This period was called the Golden Age of Microbiology. During these years, many branches of microbiology were established, and these findings led the way to modern microbiology, and many new disease and disease agents were discovered. In the 1930’s and 1940’s, the electron microscope was invented ...
... I. This period was called the Golden Age of Microbiology. During these years, many branches of microbiology were established, and these findings led the way to modern microbiology, and many new disease and disease agents were discovered. In the 1930’s and 1940’s, the electron microscope was invented ...
Lecture 4_VIRAL PATHOGENESIS AND HOST IMMUNE
... ntibodies neutralize extracellular viruses. Antiboies may be sufficient to control cytolytic viruses, because the virion factor of the infected cell is eliminated by viral replication. ...
... ntibodies neutralize extracellular viruses. Antiboies may be sufficient to control cytolytic viruses, because the virion factor of the infected cell is eliminated by viral replication. ...
Antiviral Agents – Dr.Roshna
... A family of small antiviral proteins produced as earliest response of body to viral infections ...
... A family of small antiviral proteins produced as earliest response of body to viral infections ...
QE GenKnowl Topics
... By what formal criteria are viruses demonstrated to cause human disease? Name three viruses that cause diseases in man that do not fulfill Koch’s postulates. How was viral causality demonstrated in these cases? What is the difference between lysogeny and latency? What is the Hershey-Chase experiment ...
... By what formal criteria are viruses demonstrated to cause human disease? Name three viruses that cause diseases in man that do not fulfill Koch’s postulates. How was viral causality demonstrated in these cases? What is the difference between lysogeny and latency? What is the Hershey-Chase experiment ...
General Properties of Viruses
... Ultramicroscopic in size ranging from 10nm to 300nm Have a proteinaceous capsid around the genome, some have an envelope around the capsid Replicate in an assembly-line manner using the enzymes and organelles of the host ...
... Ultramicroscopic in size ranging from 10nm to 300nm Have a proteinaceous capsid around the genome, some have an envelope around the capsid Replicate in an assembly-line manner using the enzymes and organelles of the host ...
Name date period
... attaches itself to the outside of a host cell, a viral enzyme damages the cell membrane and allows the virus to enter the host cell. Some viruses inject their DNA into the host cell & leave their protein coat outside the cell; other viruses still have their coats on when they enter the host cell. On ...
... attaches itself to the outside of a host cell, a viral enzyme damages the cell membrane and allows the virus to enter the host cell. Some viruses inject their DNA into the host cell & leave their protein coat outside the cell; other viruses still have their coats on when they enter the host cell. On ...
ppt presentation
... - mechanical injury, direct contact (wind) - vectors – sucking insects, other insects, nematods, fungi - grafting, root coalescence, - parasitic plants (Cuscuta) - vegetative propagation - some viruses also via seeds and polen! Protection – elimination of infected plants and vector insects! ...
... - mechanical injury, direct contact (wind) - vectors – sucking insects, other insects, nematods, fungi - grafting, root coalescence, - parasitic plants (Cuscuta) - vegetative propagation - some viruses also via seeds and polen! Protection – elimination of infected plants and vector insects! ...
Chapter 13 Characterizing Viruses, Viroids, and Prions
... • Many infections of humans, animals, plants, and even bacteria are caused by acellular (noncellular) particles • Acellular infectious particles include – Viruses – Viroids – prions ...
... • Many infections of humans, animals, plants, and even bacteria are caused by acellular (noncellular) particles • Acellular infectious particles include – Viruses – Viroids – prions ...
Viruses and Bacteria What are they and how they affect us?
... Center of Disease Control Outline for Disease Notification Assignment • Task: You have recently received an assignment, from the Center of Disease Control. As a member of the Public Health Notification Service (PHNS) your job is to make our citizens in the United States aware of existing diseases. E ...
... Center of Disease Control Outline for Disease Notification Assignment • Task: You have recently received an assignment, from the Center of Disease Control. As a member of the Public Health Notification Service (PHNS) your job is to make our citizens in the United States aware of existing diseases. E ...
Virus PowerPoint
... the herpes virus family, Herpesviridae, that infect humans. ubiquitous and contagious. They can be spread when an infected person is producing and shedding the virus. Symptoms of herpes simplex virus infection include watery blisters in the skin or mucous membranes of the mouth, lips or genitals. Le ...
... the herpes virus family, Herpesviridae, that infect humans. ubiquitous and contagious. They can be spread when an infected person is producing and shedding the virus. Symptoms of herpes simplex virus infection include watery blisters in the skin or mucous membranes of the mouth, lips or genitals. Le ...
NOTES: CH 19
... recently appeared in China ● Outbreaks of “new” viral diseases in humans are usually caused by existing viruses that expand their host territory ...
... recently appeared in China ● Outbreaks of “new” viral diseases in humans are usually caused by existing viruses that expand their host territory ...
Paracytology and virology 2nd stage Germs: Viruses, Bacteria, and
... the definition of classic viruses. They are nucleic acid molecules (MW 70,000– 120,000) without a protein coat. Plant viroids are single-stranded, covalently closed circular RNA molecules consisting of about 360 nucleotides and with a highly basepaired rod-like structure. Viroid RNA does not encode ...
... the definition of classic viruses. They are nucleic acid molecules (MW 70,000– 120,000) without a protein coat. Plant viroids are single-stranded, covalently closed circular RNA molecules consisting of about 360 nucleotides and with a highly basepaired rod-like structure. Viroid RNA does not encode ...
Viruses and Bacteria
... • However, just because they are not complex does not mean that they are not important • Viruses and bacteria shape the world as we know it ...
... • However, just because they are not complex does not mean that they are not important • Viruses and bacteria shape the world as we know it ...
Form B
... The disease caused by this virus infects only humans This virus can cause pneumonic plague, bubonic plague, or septicemic plague Fatality rates associated with smallpox are about 30% The name "smallpox" is derived from the characteristic pustules formed on the skin after infection No natural cases o ...
... The disease caused by this virus infects only humans This virus can cause pneumonic plague, bubonic plague, or septicemic plague Fatality rates associated with smallpox are about 30% The name "smallpox" is derived from the characteristic pustules formed on the skin after infection No natural cases o ...
Natural and Artificial Selection
... Which of the following is an example of Artificial Selection? Millions of years ago, plants were short and did not have root systems, but now plants can grow very tall and have large root systems B. Over time, birds bones have become hollow making them lighter for easy flying C. Tomatoes at the gro ...
... Which of the following is an example of Artificial Selection? Millions of years ago, plants were short and did not have root systems, but now plants can grow very tall and have large root systems B. Over time, birds bones have become hollow making them lighter for easy flying C. Tomatoes at the gro ...
MICROBIOLOGY ORAL TOPIC SUGGESTIONS Current diseases or
... Emerging infectious disease and disease trends H1N1 Swine Flu Hantavirus (originally made news as "four corners disease from New Mexico) Helicobacter pylori (causes ulcers) Hepatitis Herpes Simplex Virus HIV Legionella Listeria Lyme disease Mad Cow disease (BSE) Malaria Meningitis MRSA (methicillin ...
... Emerging infectious disease and disease trends H1N1 Swine Flu Hantavirus (originally made news as "four corners disease from New Mexico) Helicobacter pylori (causes ulcers) Hepatitis Herpes Simplex Virus HIV Legionella Listeria Lyme disease Mad Cow disease (BSE) Malaria Meningitis MRSA (methicillin ...
CH 18 Viruses and Bacteria Study Guide
... 2. Why is a virus considered a nonliving parasite? 1) Cannot grow, develop or move 2) cannot reproduce on their own. 3. What was the first virus to be discovered? Tobacco Mosaic 4. What does HIV stand for? Human Immunodeficiency Virus 5. Know the difference between Lytic and Lysogenic Cycles. Lytic: ...
... 2. Why is a virus considered a nonliving parasite? 1) Cannot grow, develop or move 2) cannot reproduce on their own. 3. What was the first virus to be discovered? Tobacco Mosaic 4. What does HIV stand for? Human Immunodeficiency Virus 5. Know the difference between Lytic and Lysogenic Cycles. Lytic: ...
Lesson Plan BISP Characterisation Clothes
... Go through worksheet answers as a way of recapping previous lesson. Tell them that this lesson we’ll be looking at the structure of viruses and how the structure is important for function. We’re going to make a model of a virus and we’ll use Dengue Virus as an example. What do viruses look like? (St ...
... Go through worksheet answers as a way of recapping previous lesson. Tell them that this lesson we’ll be looking at the structure of viruses and how the structure is important for function. We’re going to make a model of a virus and we’ll use Dengue Virus as an example. What do viruses look like? (St ...
Mono
... 80-95% of adults in the U.S. have had mono by the time they are 40; only about 20% know they’ve had it. Mono is transmitted usually by saliva. Kissing, drinking after someone and intimate contact are typical sources of exposure. Mono has a long incubation period. It can take 1-2 months for sympt ...
... 80-95% of adults in the U.S. have had mono by the time they are 40; only about 20% know they’ve had it. Mono is transmitted usually by saliva. Kissing, drinking after someone and intimate contact are typical sources of exposure. Mono has a long incubation period. It can take 1-2 months for sympt ...
Medical Virology - Med Study Group
... • Prions are rather ill-defined infectious agents believed to consist of a single type of protein molecule with no nucleic acid component. Confusion arises from the fact that the prion protein & the gene which encodes it are also found in normal 'uninfected' cells. These agents are associated with d ...
... • Prions are rather ill-defined infectious agents believed to consist of a single type of protein molecule with no nucleic acid component. Confusion arises from the fact that the prion protein & the gene which encodes it are also found in normal 'uninfected' cells. These agents are associated with d ...
Health_Unit4_Exam
... 11) Polio is a disease that is transmitted by a virus. *a. True b. False 12) The pathogen for ringworm is __________. *a. fungi b. virus c. bacteria d. protozoan 13) Bacterium is the pathogen for polio. a. True *b. False 14) The pathogen that causes malaria is __________. a. virus *b. protozoan c. f ...
... 11) Polio is a disease that is transmitted by a virus. *a. True b. False 12) The pathogen for ringworm is __________. *a. fungi b. virus c. bacteria d. protozoan 13) Bacterium is the pathogen for polio. a. True *b. False 14) The pathogen that causes malaria is __________. a. virus *b. protozoan c. f ...
Chapter 6
... undergo adsorption and penetration but don’t replicate • The viral genome inserts into bacterial genome and becomes an inactive prophage – the cell is not lysed • Prophage is retained and copied during normal cell division resulting in the transfer of temperate phage genome to all host cell progeny ...
... undergo adsorption and penetration but don’t replicate • The viral genome inserts into bacterial genome and becomes an inactive prophage – the cell is not lysed • Prophage is retained and copied during normal cell division resulting in the transfer of temperate phage genome to all host cell progeny ...
Foundations in Microbiology
... undergo adsorption and penetration but don’t replicate • The viral genome inserts into bacterial genome and becomes an inactive prophage – the cell is not lysed • Prophage is retained and copied during normal cell division resulting in the transfer of temperate phage genome to all host cell progeny ...
... undergo adsorption and penetration but don’t replicate • The viral genome inserts into bacterial genome and becomes an inactive prophage – the cell is not lysed • Prophage is retained and copied during normal cell division resulting in the transfer of temperate phage genome to all host cell progeny ...
Foundations in Microbiology
... undergo adsorption and penetration but don’t replicate • The viral genome inserts into bacterial genome and becomes an inactive prophage – the cell is not lysed • Prophage is retained and copied during normal cell division resulting in the transfer of temperate phage genome to all host cell progeny ...
... undergo adsorption and penetration but don’t replicate • The viral genome inserts into bacterial genome and becomes an inactive prophage – the cell is not lysed • Prophage is retained and copied during normal cell division resulting in the transfer of temperate phage genome to all host cell progeny ...
Negative sense RNA viruses
... - causes epizootics in cattle, swine, & horses; insect & tick hosts also - rapid replication leads to many defective-interfering (DI) particles Genus Lyssavirus - Rabies virus - continuous health problem worldwide - thousands of cases per year - in dogs and cattle in Central & South America; skunks, ...
... - causes epizootics in cattle, swine, & horses; insect & tick hosts also - rapid replication leads to many defective-interfering (DI) particles Genus Lyssavirus - Rabies virus - continuous health problem worldwide - thousands of cases per year - in dogs and cattle in Central & South America; skunks, ...
Social history of viruses
![](https://commons.wikimedia.org/wiki/Special:FilePath/Polio_physical_therapy.jpg?width=300)
The social history of viruses describes the influence of viruses and viral infections on human history. Epidemics caused by viruses began when human behaviour changed during the Neolithic period, around 12,000 years ago, when humans developed more densely populated agricultural communities. This allowed viruses to spread rapidly and subsequently to become endemic. Viruses of plants and livestock also increased, and as humans became dependent on agriculture and farming, diseases such as potyviruses of potatoes and rinderpest of cattle had devastating consequences.Smallpox and measles viruses are among the oldest that infect humans. Having evolved from viruses that infected other animals, they first appeared in humans in Europe and North Africa thousands of years ago. The viruses were later carried to the New World by Europeans during the time of the Spanish Conquests, but the indigenous people had no natural resistance to the viruses and millions of them died during epidemics. Influenza pandemics have been recorded since 1580, and they have occurred with increasing frequency in subsequent centuries. The pandemic of 1918–19, in which 40–50 million died in less than a year, was one of the most devastating in history.Louis Pasteur and Edward Jenner were the first to develop vaccines to protect against viral infections. The nature of viruses remained unknown until the invention of the electron microscope in the 1930s, when the science of virology gained momentum. In the 20th century many diseases both old and new were found to be caused by viruses. There were epidemics of poliomyelitis that were only controlled following the development of a vaccine in the 1950s. HIV is one of the most pathogenic new viruses to have emerged in centuries. Although scientific interest in them arose because of the diseases they cause, most viruses are beneficial. They drive evolution by transferring genes across species, play important roles in ecosystems and are essential to life.