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Canine hepacivirus, a relative of hepatitis C virus

Contemporary human viruses most likely originated by cross-species transmission from non-human animals. Examples include HIV-1, which crossed from chimpanzees to humans, and SARS coronavirus, which originated in bats. Since the 1989 discovery of hepatitis C virus (classified as a hepacivirus in ... Read More

TWiM 34 Letters

Peter writes:

Dear TWiM Team


I see that some action is now being taken in America against the non-therapeutic use of antibiotics as livestock growth promoters:


Read More

TWiV 184 Letters

Apoptosis writes:


A video of 'Every Major's Terrible: http://www.youtube.com/watch?v=LdyoGruec88&a... Read More

TWiP 17 Letters

Bjorn writes:

Hi Vincent and Dickson,


I want to correct a statement you made in the trypanosomes episode. Apolipoprotein L-I in human blood kills only the subspecies Trypanosoma brucei brucei, whereas the East African subspecies Trypanosoma brucei rhodesiense and the... Read More

All about oomycetes - fine reading

The Small Things Considered blog has just started a three-part series on oomycetes, also known as water molds.

The first piece (published today) describes oomycete biology, the other two will focus on a particular oomycete: the late potato blight pathogen.

Here's a clip:

"As you know, ... Read More

Personal protective equipment and influenza

The Institute of Medicine has been asked to make recommendations about how to protect healthcare workers against swine-origin H1N1 influenza. They have been hearing presentations concerning the effectiveness of facemasks in preventing respiratory infections. Read More

TWiV 159: Flu gets the REDD light

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Hosts: Vincent RacanielloAl... Read More

A spike for piercing the cell membrane

Some viruses that infect bacteria (bacteriophages) deliver their DNA into the host cell with an amazing injection machine. The tailed bacteriophages (such as T4, illustrated) store their DNA in a capsid attached to a long tail tube that is surrounded by a sheath. At the bottom of the tube is a b... Read More

The Rise of Community-Associated MRSA

This teleconference is sponsored by the American Society for Microbiology and will review the history and importance of methicillin-resistant Staphylococcus aureus (MRSA) with a primary focus on the emergence of community-associated MRSA (CA-MRSA). The phenotypic and molecular identification of ... Read More

TWiV 157: Better innate than never

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Hosts: Vincent RacanielloR... Read More

The Human Lake

Science writer Carl Zimmer writes a masterful blog piece tracing the history of the study of ecosystems, from lakes to the human microbiome. Just one interesting fact: In their lifetimes, individual humans will produce about five elephants worth of microbes. Read More

TWiP 26 Letters

Jim writes:

Prof Dickson,


Does the same concern that you discussed with suppressed immunity after a transplant apply to folks who undergo chemotherapy for cancer? (re strongyloides)


Jim
Smithfield, VA


Spencer writes:


Hi V... Read More

Tiny snow-makers

The Judges' Choice for The Scientist magazine's 2011 Labby Multimedia Awards is this cute video on how microbes are essential for snow formation.













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A new target for hepatitis C virus

When infection with hepatitis C virus goes from acute to chronic, severe liver disease may occur which requires organ transplantation. Nearly 200 million people are chronically infected with HCV, necessitating approaches to preventing and treating infections. No HCV vaccine is available, and cur... Read More

Are there viruses of arsenic-utilizing bacteria?

A salt-loving (halophilic) bacterium which can grow in medium containing arsenic instead of phosphorus has been selected from the microbial community of Mono Lake in California. Arsenic (As) is a chemical analog of phosphorus and is usually toxic because it can enter metabolic pathways in the pl... Read More

TWiV 152: Viromes in the effluence of society

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Hosts: Vincent Racaniello, Al... Read More

TWiV 165 Letters

Justin writes:


Are you, Alan Dove and Prof. Racaniello, saying you think Mikovits and/or others on the Lombardi paper lied about the results or blinding? I think circumspection is a natural human reaction to the allegations of theft that have been made against Dr. Mik... Read More

TWiV 87 Letters

James writes:


Dear TWIV,


I've really enjoyed hearing about the paths you and your guests took to enter the fields of virology and parasitology.


I was wondering if Dr. Dove could talk for a few minutes about how and why he decided to transition into sci... Read More

TWiV 140 Letters

from @Lafrenchfille on Twitter:


French listen to your very cool podcast. So I can confirm, "Mimi" is french !


Peter writes:


Regarding the podcasting advice from the fellow in Israel.


Explain st... Read More

The Rise of Genomic Superspreaders

One hundred million years ago the earth’s climate was much warmer than today and vast inland seas stretched across entire continents. The land was dominated by charismatic megafauna that would one day serve as inspiration for Sir Arthur Conan Doyle’s novel The Lost World. This period is commonly... Read More

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