Ebola virus (aka Ebola hemorrhagic fever)
... No. It is a virus, so the bleeding is controlled until body can heal itself. The CDC has some new treatments that you may have heard about on news, but it’s not a cure and not widely available. Should I be worried? No. Ebola only spreads in countries with poor sanitation and poor health care. That i ...
... No. It is a virus, so the bleeding is controlled until body can heal itself. The CDC has some new treatments that you may have heard about on news, but it’s not a cure and not widely available. Should I be worried? No. Ebola only spreads in countries with poor sanitation and poor health care. That i ...
Size and Shape of Viruses
... A vaccine contains a killed or weakened part of a germ that is responsible for infection. Because the germ has been killed or weakened before it is used to make the vaccine, it can not make the person sick. When a person receives a vaccine, the body reacts by making protective substances called "ant ...
... A vaccine contains a killed or weakened part of a germ that is responsible for infection. Because the germ has been killed or weakened before it is used to make the vaccine, it can not make the person sick. When a person receives a vaccine, the body reacts by making protective substances called "ant ...
Virus PowerPoint
... • A virus that replicates through the lysogenic cycle does not kill the host cell immediately. It may stay in the host for days, months or even years. • The virus in this cycle is called a temperate virus. The virus DNA is incorporated in the cell DNA, at a site in the host cell genome, is called a ...
... • A virus that replicates through the lysogenic cycle does not kill the host cell immediately. It may stay in the host for days, months or even years. • The virus in this cycle is called a temperate virus. The virus DNA is incorporated in the cell DNA, at a site in the host cell genome, is called a ...
Viruses - mrkeay
... (RNA or DNA) surrounded by a protein, lipid (fat), or glycoprotein coat. Exists between living and non-living (lacks characteristics of six Kingdoms) Parasitic existence Source: Medical News Today ...
... (RNA or DNA) surrounded by a protein, lipid (fat), or glycoprotein coat. Exists between living and non-living (lacks characteristics of six Kingdoms) Parasitic existence Source: Medical News Today ...
Intro to Virology
... • J. Frederick Twort (1915) first isolated viruses that would infect bacteria, but did not follow up on these observations • K. Felix d'Herelle (1917) firmly established the existence of viruses that infect bacteria, and devised a method for enumerating them; he also demonstrated that these viruses ...
... • J. Frederick Twort (1915) first isolated viruses that would infect bacteria, but did not follow up on these observations • K. Felix d'Herelle (1917) firmly established the existence of viruses that infect bacteria, and devised a method for enumerating them; he also demonstrated that these viruses ...
Viruses
... populations of bacteria are killed by antibiotics. As a result, resistant bacteria thrive. ...
... populations of bacteria are killed by antibiotics. As a result, resistant bacteria thrive. ...
ACADEMIC BIOLOGY: READING GUIDE for Ch
... ATTACHMENT TO A HOST CELL 6. Read the second paragraph in this section and explain in your own words how is the attachment of a virus to its host cell like two pieces of a jigsaw puzzle fitting together? (pg. 476) ...
... ATTACHMENT TO A HOST CELL 6. Read the second paragraph in this section and explain in your own words how is the attachment of a virus to its host cell like two pieces of a jigsaw puzzle fitting together? (pg. 476) ...
Disease and Disease-Producing Organisms Part 1
... Explain methods through which microorganisms can ...
... Explain methods through which microorganisms can ...
viral_replication
... viruses including those that cause influenza and mumps) Influenza A viruses infect a wide variety of mammals, including man, horses, pigs, ferrets and birds • Influenza A viruses are a major human pathogen, associated with epidemics and pandemics. • Influenza B viruses infect humans only and cause d ...
... viruses including those that cause influenza and mumps) Influenza A viruses infect a wide variety of mammals, including man, horses, pigs, ferrets and birds • Influenza A viruses are a major human pathogen, associated with epidemics and pandemics. • Influenza B viruses infect humans only and cause d ...
Notes 3 Microbes - harnettcountyhighschools
... Every ________ that originates from an infected host cell has a __________________________ The lysogenic phase can continue for many _____________ At any time the provirus can activate and enter a ______________ cycle 3) RNA Viruses = ____________________ viruses. Enzyme needed to convert RNA to DNA ...
... Every ________ that originates from an infected host cell has a __________________________ The lysogenic phase can continue for many _____________ At any time the provirus can activate and enter a ______________ cycle 3) RNA Viruses = ____________________ viruses. Enzyme needed to convert RNA to DNA ...
Virus Notes
... A. The hereditary material of the virus becomes part of the host cell’s hereditary material. B. As the host cell reproduces, the viral DNA is copied. C. A latent virus may be dormant for many years. D. Outside factors induce the virus to become active. When this occurs, the virus becomes active and ...
... A. The hereditary material of the virus becomes part of the host cell’s hereditary material. B. As the host cell reproduces, the viral DNA is copied. C. A latent virus may be dormant for many years. D. Outside factors induce the virus to become active. When this occurs, the virus becomes active and ...
Viruses Quiz Answer Key
... 8. What does it mean for a virus to “infect” a cell? a) The virus lands on the outside of the cell then completely enters the cell. b) The virus lands on the outside of the cell and injects its genetic material into the cell. c) The virus lands on the outside of the cell and injects its proteins int ...
... 8. What does it mean for a virus to “infect” a cell? a) The virus lands on the outside of the cell then completely enters the cell. b) The virus lands on the outside of the cell and injects its genetic material into the cell. c) The virus lands on the outside of the cell and injects its proteins int ...
Biological hazards
... Hendra virus Hendra virus is a virus carried by fruit bats that inhabit Australia, Papua New Guinea, and surrounding islands. Rarely, Hendra virus spreads from fruit bats to horses, causing severe disease, and can then spread to people who are in close contact with infected horses. Four of the ...
... Hendra virus Hendra virus is a virus carried by fruit bats that inhabit Australia, Papua New Guinea, and surrounding islands. Rarely, Hendra virus spreads from fruit bats to horses, causing severe disease, and can then spread to people who are in close contact with infected horses. Four of the ...
Agents of Disease
... • Mobility is by flagella, or “tail” • Most are soil inhabitants surviving on plant debris, but also in seeds, insects, and free‐ ...
... • Mobility is by flagella, or “tail” • Most are soil inhabitants surviving on plant debris, but also in seeds, insects, and free‐ ...
Isolation of Emerging Viruses
... 2004) has mortality rates up to 74% (similar to smallpox-30% and Ebola-40-90%) 3-7% experience late or relapsed encephalitis; increased community exposure No effective anti-virals, limited diagnostic capability Paramyxoviruses can be grown to high titers in vitro (1011 IU/ml) without concentration A ...
... 2004) has mortality rates up to 74% (similar to smallpox-30% and Ebola-40-90%) 3-7% experience late or relapsed encephalitis; increased community exposure No effective anti-virals, limited diagnostic capability Paramyxoviruses can be grown to high titers in vitro (1011 IU/ml) without concentration A ...
Immune System-
... Lungs infected with TB bacteria Phagocytes move to lungs and engulf bacteria Bacteria survive and breed inside phagocyte Tubercles form in lungs—small, rounded swellings containing infected phagocytes First infection is usually not severe Re-infection results in chronic TB which gradually destroys t ...
... Lungs infected with TB bacteria Phagocytes move to lungs and engulf bacteria Bacteria survive and breed inside phagocyte Tubercles form in lungs—small, rounded swellings containing infected phagocytes First infection is usually not severe Re-infection results in chronic TB which gradually destroys t ...
How do viruses, bacteria, and protists effect our lives in both positive
... diseases/illnesses, which can be mild (like strep throat) or life threatening (like Tuberculosis ) ...
... diseases/illnesses, which can be mild (like strep throat) or life threatening (like Tuberculosis ) ...
Prions
... responsible for this disease? How is it spread? • Chickenpox and Shingles: – Shingles rarely occurs in people under the age of ...
... responsible for this disease? How is it spread? • Chickenpox and Shingles: – Shingles rarely occurs in people under the age of ...
Prions
... responsible for this disease? How is it spread? • Chickenpox and Shingles: – Shingles rarely occurs in people under the age of ...
... responsible for this disease? How is it spread? • Chickenpox and Shingles: – Shingles rarely occurs in people under the age of ...
Giant viruses!
... particles of cellular dimensions as well as gene contents overlapping in size with that of bacteria and some parasitic eukaryotes. Although all presently known giant viruses have been isolated using Acanthamoeba as laboratory host, related members are now starting to be found in other protozoa, such ...
... particles of cellular dimensions as well as gene contents overlapping in size with that of bacteria and some parasitic eukaryotes. Although all presently known giant viruses have been isolated using Acanthamoeba as laboratory host, related members are now starting to be found in other protozoa, such ...
L9_viruses_7e
... for replication -three particles found in blood sample 1. Dane 2. filamentous 3. sphericle -exposure through blood/body fluids ...
... for replication -three particles found in blood sample 1. Dane 2. filamentous 3. sphericle -exposure through blood/body fluids ...
Marburg Hemorrhagic Fever
... MFH is a zoonotic disease, meaning that the agent, which is a virus, is transferred from an animal to the humans and causes infection. The reservoir for this virus was found to be the African fruit bats. This type of bath are known to carry many viral and fungus diseases and they can be in close con ...
... MFH is a zoonotic disease, meaning that the agent, which is a virus, is transferred from an animal to the humans and causes infection. The reservoir for this virus was found to be the African fruit bats. This type of bath are known to carry many viral and fungus diseases and they can be in close con ...
Virus/Bacteria Review Questions
... 22. What is an endospore? _______________________________________________________ 23. What would happen to plants and animals if decomposers did not recycle nutrients? ___________________________________________________________________________ 24. How does nitrogen fixation help plants? ____________ ...
... 22. What is an endospore? _______________________________________________________ 23. What would happen to plants and animals if decomposers did not recycle nutrients? ___________________________________________________________________________ 24. How does nitrogen fixation help plants? ____________ ...
Social history of viruses
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.