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Enveloped
Enveloped

... • Protects the capsid when present. • Composed of protein and lipid. • Contains proteins needed to attach to host cells. Naked ...
Essential knowledge 3.C.3:
Essential knowledge 3.C.3:

... them in patches on the plasma membrane. 4. New viruses bud (like exocytosis) from the areas of these clusters. Thus, the envelop is derived from the host cell membrane although some of the proteins contained in it are of viral origin. Note that this cycle does not necessarily kill the host cell. ...
Slide 1
Slide 1

... • Enveloped vs Nonenveloped • Genetic material – DNA (single stranded or double ...
Created with Sketch. Make an adenovirus
Created with Sketch. Make an adenovirus

... You are going to make a model of a virus from the Adenoviridae family of viruses. The viruses from this family can cause diseases such as tonsillitis, conjunctivitis, respiratory diseases, ear infections and gastroenteritis. What to do 1. Cut out the isohedron template. 2. Crease along the lines. 3. ...
IMMUNE RESPONSE TO INFECTIOUS DISEASE
IMMUNE RESPONSE TO INFECTIOUS DISEASE

...  Induction of Type I Interferons:  The double-stranded RNA (dsRNA) of the virus induces the expression of the interferons by the infected cell.  The bound IFN’s will activate the JAK/STAT pathway responsible for the synthesis of ...
Sexually Transmitted Diseases Sexually Transmitted
Sexually Transmitted Diseases Sexually Transmitted

... HIV infection because STD’s cause changes in the body’s membranes. By sharing Needles: Contaminated From mother to baby during birth or breast feeding. ...
Module 1: HIV/AIDS: The Epidemic
Module 1: HIV/AIDS: The Epidemic

... (RNA-ribonucleic acid). Each strand of the RNA has a copy of the virus’s genes Reverse Transcriptase: This is an enzyme that allows HIV’s RNA to change into DNA so that it can pass into the host cell’s nucleus to begin reproducing itself Module 1, Chapter 2 ...
presentation 1
presentation 1

...  Mother has persistently detectable viral load despite ART  The mother is found to be HIV infected after the infant has delivered, and the ...
Virus Diagnostics at FRS Marine Laboratory
Virus Diagnostics at FRS Marine Laboratory

... genetically very closely related and regarded as types of the same genus. Kidney, heart, pancreas and serum are sampled for testing. Both viruses can be detected by cell culture isolation on CHSE-214 cells; however isolation is relatively difficult and slow. Careful microscopic observation of cultur ...
B. Nucleic acid
B. Nucleic acid

... (1) The minus strand is used as a template to synthesize plus RNA molecules for new viral genomes 4. Negative single stranded RNA viruses a) Viral encoded RNA-dependent RNA polymerase synthesizes plus strand RNA (1) The plus strand is used for translation of viral proteins using host ribosomes (2) T ...
File
File

... pandemic - Has been very rare since 2003 - Retrovirus - Takes RNA and makes DNA through reverse transcriptase - Infects the host as a Lysogenic infection - Becomes Lytic as it kills WBC - Very high mutation rate ...
Bacteria / Virus ppt
Bacteria / Virus ppt

... • Transmitted by blood, breast feeding, sexually, and other bodily fluids • Can happen to anyone! ...
Viruses_Summary (1)
Viruses_Summary (1)

... doorknob, they do absolutely nothing. They're about as alive as a rock. But if they come into contact with a suitable plant or animal cell, they spring into action. They infect and take over the cell like pirates hijacking a ship. As a virus cannot reproduce without using another creatures’ cells to ...
Adherence Taking medication at the right dose / time and in the right
Adherence Taking medication at the right dose / time and in the right

... left untreated, CMV retinitis can lead to blindness. Retrovirus Retroviruses are RNA viruses that transcribe their genetic material into DNA using an enzyme called reverse transcriptase. Reverse transcriptase An enzyme that is needed by HIV to get inside cells and make more of itself. Salvage therap ...
RNA Viruses
RNA Viruses

... A causes most infections • Viral infection – Virus attaches to, and multiplies in, the cells of the respiratory tract – Segments of RNA genome enter the nucleus (transcribed/translated) – Finished viruses are assembled and budded off the cell with an envelope ...
Viral Plant Pathogens
Viral Plant Pathogens

... PLANT PATHOGENS ...
Virus
Virus

... • Contain RNA as their genetic information • They produce a DNA copy of their RNA – RNA produces DNA – (this is the reverse of what normally happens in healthy cells) ...
2.2.6. Transmission of Diseases
2.2.6. Transmission of Diseases

... mosquito sucks up the gamete stage of the parasite  Zygotes develop in the mosquito ...
Will we ever have an HIV vaccine?
Will we ever have an HIV vaccine?

... Vaccine researchers are also working on ways of stimulating our T-cells to kill infected cells at an early stage. This was the strategy behind Merck’s failed v520 vaccine, but scientists have since found better ways of smuggling viral genes into cells, and targeting them at the tissues most likely t ...
Freeman 1e: How we got there
Freeman 1e: How we got there

... immunodeficiency virus (HIV) causes AIDS. ...
The Effects of HIV/AIDS
The Effects of HIV/AIDS

... Body makes more T-Cells, that mature into helper T-Cells  Virus still attacks these new T-Cells as body continues to make them This process continues until the body can no longer create T-Cells  This takes up to 10 years Loss of helper T-Cells results in complete inability of the body to ward off ...
EBBA-R - Fowler School District R4J
EBBA-R - Fowler School District R4J

... situations. It is strongly recommended that barriers be used when contact with body fluids or substances is anticipated. Although HIV (human immuno-deficiency virus)/AIDS (acquired immune deficiency syndrome) has received a great deal of attention, there are other diseases more communicable than HIV ...
Paramyxoviruses 副黏液病毒 Objectives How many types of viruses
Paramyxoviruses 副黏液病毒 Objectives How many types of viruses

... virus infection • With hemagglutinin and neuraminidase • One serotype ...
Virology
Virology

... Release of Genome (uncoating) Influenza Virus ...
bacteria PPT test
bacteria PPT test

... You have a cold, but your doctor will not give you an antibiotic, because ...
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HIV



The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS). AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype. Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.HIV infects vital cells in the human immune system such as helper T cells (specifically CD4+ T cells), macrophages, and dendritic cells. HIV infection leads to low levels of CD4+ T cells through a number of mechanisms, including apoptosis of uninfected bystander cells, direct viral killing of infected cells, and killing of infected CD4+ T cells by CD8 cytotoxic lymphocytes that recognize infected cells. When CD4+ T cell numbers decline below a critical level, cell-mediated immunity is lost, and the body becomes progressively more susceptible to opportunistic infections.
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