• Skip to main content
  • Skip to primary sidebar
virology blog

virology blog

About viruses and viral disease

hepatitis b virus

TWiV 148: Retreating into Harvard virology

11 September 2011 by Vincent Racaniello

harvard virology retreatHosts: Vincent Racaniello, Philip Kranzusch, David Knipe, and Priscilla Yang

Vincent, Philip, David, and Priscilla recorded this episode before an audience at the Harvard Virology Program Annual Retreat, where they discussed negative strand RNA viruses, a vaccine against herpes simplex virus type 2, lipidomics of viral infection, and science communication.

The Keynote Speaker at the Harvard Virology retreat is usually an individual, but this year the honor went to TWiV as an example of science communication to the public. Many thanks to members of the Virology Program for a terrific retreat!

Artwork by Silvia Piccinotti, G4

[powerpress url=”http://traffic.libsyn.com/twiv/TWiV148.mp3″]

Click the arrow above to play, or right-click to download TWiV 148 (56 MB .mp3, 77 minutes).

Subscribe to TWiV (free) in iTunes , at the Zune Marketplace, by the RSS feed, by email, or listen on your mobile device with the Microbeworld app.

Links for this episode:

  • Virology at Harvard
  • Harvard Virology Retreat 2011 Program (pdf)
  • Science in the News
  • Lincoln Laboratory, MIT
  • Top 10 causes of death (WHO)
  • Top 10 infectious disease deaths (Baylor)
  • TWiV on Facebook
  • Letters read on TWiV 148
  • Video of this episode: view below or download (228 MB .mp4)

Weekly Science Picks

Philip – AntWeb
David –
Herpes-like viruses in corals (PNAS and LiveScience)
Priscilla –
Science museums (Boston, Durham)
Vincent –
Contagion

Listener Pick of the Week

Jenny – Emerman’s review of Planet of Viruses (PLoS Biology)

Send your virology questions and comments (email or mp3 file) to twiv@microbe.tv, or call them in to 908-312-0760. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twiv.

Filed Under: This Week in Virology Tagged With: harvard medical school, hepatitis b virus, hepatitis C virus, herpes simplex, lipidomics, RNA polymerase, vaccine, viral, virology, virus

Baruch S. Blumberg, MD, 1925-2011

11 April 2011 by Vincent Racaniello

Baruch Samuel_Blumberg by Tom TrowerGlenn Rall, a virologist at Fox Chase Cancer Center, sent me the following note:

Baruch S. Blumberg, Nobel Laureate in 1976 for discovery of Hepatitis B (and the eventual development of the vaccine, which probably has saved hundreds of thousands of lives since its introduction), died this past Tuesday (4/5/11).  Barry did most of his work at Fox Chase, though he was an inspiration to many of us, and a catalyst for some tremendously exciting scientific conversations. He was active in science all through his life; in fact, just a few weeks ago, he gave a seminar at the Center, and on the morning of the day of his death, he gave a plenary lecture at a NASA meeting in California.  His HBV work was among the first truly translational studies, and his accomplishments are even more notable given that, when he made his major discoveries, he was neither  a cancer biologist nor a virologist.  For those podcast listeners or blog readers who might want to know more about him,  I would refer them to his autobiography from his Nobel acceptance, which I have appended. Our field has lost a creative scientist, a kind and supportive colleague, and a tireless advocate for basic research.

In the 1950s, Blumberg had begun studying variations in human populations by examining blood proteins. He had found a protein in the blood of Australian aborigines, which he called Australia antigen or Au, that was not present in Americans and Europeans. By 1966 he realized that individuals with the Au protein also had hepatitis, an inflammation of the liver. The key to the function of this protein became apparent to Blumberg when serum from a patient in New Jersey became positive for the Au antigen. This finding was a surprise because the individual had previously tested negative for Au. At the same time, the patient developed hepatitis. The discovery lead to the identification of the hepatitis B virus particle, development of blood tests to eliminate the virus from the blood supply, and production of a vaccine to prevent infection. Because chronic hepatitis B frequently leads to carcinoma of the liver, the vaccine has prevented many cancer deaths.

I did not personally know Dr. Blumberg, but we have something in common besides virology: Columbia University. Dr. Blumberg obtained the MD degree in 1951 from the College of Physicians and Surgeons, which is where I have been doing virus research since 1982.

Filed Under: Events, Information Tagged With: australia antigen, baruch blumberg, hepatitis b virus, liver cancer, vaccine, viral, virology, virus

TWiV 105: Finches score again

31 October 2010 by Vincent Racaniello

Hosts: Vincent Racaniello, Dickson Despommier, Alan Dove, and Rich Condit

On episode #105 of the podcast This Week in Virology, Vincent, Dickson, Alan, and Rich review eradication of rinderpest, endogenous hepatitis B virus in the zebra finch genome, and identification of the cell receptor for an extinct retrovirus.

[powerpress url=”http://traffic.libsyn.com/twiv/TWiV105.mp3″]

Click the arrow above to play, or right-click to download TWiV #105 (66 MB .mp3, 92 minutes)

Subscribe to TWiV (free) in iTunes , at the Zune Marketplace, by the RSS feed, or by email, or listen on your mobile device with Stitcher Radio.

Links for this episode:

  • Eradication of rinderpest
  • Rinderpest in the Merck Veterinary Manual
  • Rinderpest summary (pdf)
  • Manual on the preparation of rinderpest contingency plans
  • Walter Plowright obituary
  • The Plowright vaccine
  • Measles evolution from rinderpest
  • Endogenous hepadnaviruses in the genome of the zebra finch (PLoS One)
  • Receptor for an extinct retrovirus (PNAS)
  • Vertical farm: NPR post and YouTube video
  • Letters read on TWiV 105

Weekly Science Picks

Dickson – Winged Migration
Alan – Web-accessible shortwave receivers
Rich – Personal Genome Project
Vincent –
XVIVO scientific animation

Send your virology questions and comments (email or mp3 file) to twiv@microbe.tv or leave voicemail at Skype: twivpodcast. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twiv.

Filed Under: This Week in Virology Tagged With: endogenous virus, eradication, hepadnavirus, hepatitis b virus, morbillivirus, receptor, retrovirus, rinderpest, viral, virology, virus, zebra finch

TWiV 80: How much X could a woodchuck chuck?

2 May 2010 by Vincent Racaniello

Hosts: Vincent Racaniello, Alan Dove, Rich Condit, and Michael Bouchard

Vincent, Alan, and Rich speak with Michael Bouchard about hepatitis B virus discovery, replication, and pathogenesis.

This episode is sponsored by Data Robotics Inc. Use the promotion code TWIVPOD to receive $75-$500 off a Drobo.

Win a free Drobo S! Contest rules here.

[powerpress url=”http://traffic.libsyn.com/twiv/TWiV080.mp3″]

Click the arrow above to play, or right-click to download TWiV #80 (58 MB .mp3, 80 minutes)

Subscribe to TWiV (free) in iTunes , at the Zune Marketplace, by the RSS feed, or by email.

Links for this episode:

  • The enigmatic X gene of hepatitis B virus
  • Tableau public (thanks Ricardo!)
  • Molecular phylogeny of Archaea from soil (thanks Etienne!)
  • Habitats of Archaea (thanks Cedric!)
  • Timer remote controls (thanks Bill!)
  • Letters read in episode 80

Weekly Science Picks

Rich PBS Frontline: The Vaccine War
Alan
Readability
Vincent Starswarm by Jerry Pournelle

Send your virology questions and comments (email or mp3 file) to twiv@microbe.tv or leave voicemail at Skype: twivpodcast. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twiv.

Filed Under: This Week in Virology Tagged With: cancer, HBV, hepatitis, hepatitis b virus, hepatocellular carcinoma, liver, podcast, transformation, TWiV, viral, virology, virus, X protein

Virology lecture #7: Reverse transcription and integration

18 February 2010 by Vincent Racaniello


Download: .wmv (354 MB) | .mp4 (92 MB)

Visit the virology W3310 home page for a complete list of course resources.

Filed Under: Basic virology, Information Tagged With: hepatitis b virus, integrase, lecture, retrovirus, reverse transcriptase, rna tumor virus, rnase h, viral, virology, virus, w3310

TWiV 66: Reverse transcription

17 January 2010 by Vincent Racaniello

Hosts: Vincent Racaniello and Dickson Despommier

Vincent and Dickson continue virology 101 with a discussion of information flow from RNA to DNA, a process known as reverse transcription, which occurs in cells infected with retroviruses, hepatitis B virus, cauliflower mosaic virus, foamy viruses, and even in uninfected cells.

This episode is sponsored by Data Robotics Inc. To receive $50 off a Drobo or $100 off a Drobo S, visit drobostore.com and use the promotion code VINCENT.

[powerpress url=”http://traffic.libsyn.com/twiv/TWiV066.mp3″]

Click the arrow above to play, or right-click to download TWiV #66 (50 MB .mp3, 68 minutes)

Subscribe to TWiV (free) in iTunes , at the Zune Marketplace, by the RSS feed, or by email.

Links for this episode:

  • Discovery of RNA tumor viruses
  • Reverse transcriptase found by Temin and Baltimore (pdfs)
  • Figures for this episode
  • Video of this episode – download .mp4 or .wmv or view below

Weekly Science Picks
Vincent Joint UN Programme on HIV/AIDS

Send your virology questions and comments (email or mp3 file) to twiv@microbe.tv or leave voicemail at Skype: twivpodcast. You can also post articles that you would like us to discuss at microbeworld.org and tag them with twiv.

Filed Under: This Week in Virology Tagged With: AIDS, caulimovirus, foamy virus, HBV, hepatitis b virus, HIV, retroelement, retrovirus, reverse transcriptase, reverse transcription, rna tumor virus, TWiV, viral, virology, virus

  • « Go to Previous Page
  • Go to page 1
  • Go to page 2
  • Go to page 3
  • Go to page 4

Primary Sidebar

by Vincent Racaniello

Earth’s virology Professor
Questions? virology@virology.ws

With David Tuller and
Gertrud U. Rey

Follow

Facebook, Twitter, YouTube, Instagram
Get updates by RSS or Email

Contents

Table of Contents
ME/CFS
Inside a BSL-4
The Wall of Polio
Microbe Art
Interviews With Virologists

Earth’s Virology Course

Virology Live
Columbia U
Virologia en Español
Virology 101
Influenza 101

Podcasts

This Week in Virology
This Week in Microbiology
This Week in Parasitism
This Week in Evolution
Immune
This Week in Neuroscience
All at MicrobeTV

Useful Resources

Lecturio Online Courses
HealthMap
Polio eradication
Promed-Mail
Small Things Considered
ViralZone
Virus Particle Explorer
The Living River
Parasites Without Borders

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.