Microbes require nutrients to grow. These are supplied by either solid or liquid culture media. The standard solid medium is nutrient agar, a gelatinous substance derived from seaweed. The basic liquid medium is nutrient broth, typically a mix of water, meat extract peptone, and sodium chlori... Read More
Analysis of poliovirus recovered from the stool of a patient with fatal poliomyelitis revealed that she had been infected with the virus 12 years earlier, probably when one of her children received the oral poliovirus vaccine. This case has the longest known incubation period for vaccine-derived... Read More
New 2010 Handwashing Brochure - Get a Grip
The first detailed study of infection of nonhuman primates with the retrovirus XMRV reveals that the virus establishes a persistent infection characterized by infection of multiple tissues. Viremia (virus in the blood) is low and transient, with proviral DNA detectable in blood lymphocytes. The ... Read More
Nearly four months ago I stood at the front of a crowded classroom at Columbia University and began teaching the third year of my undergraduate virology course. Twice a week we discussed the basic principles of virology, including how virions are built, how they replicate, and how they cause dis... Read More
Vincent and Dickson review the life cycle and pathogenesis of the world's most unusual parasite, Strongyloides stercoralis.
Download Read More
RSS stands for really simple syndication. It's an acronym encompassing various data formats (xml, atom, rss, rdf) used for providing users with frequently updated content. RSS also allows... Read More
Fungi can be found in rising bread, moldy bread, and old food in the refrigerator, and on forest floors. Most decompose non-living things, but some damage crops and plants. A few cause problems in people, such as Candida, which causes yeast infections.... Read More
Why is there such widespread fear of avian H5N1 influenza virus?
Why did Paul Keim, chair of the National Science Advisory Board for Biosecurity (NSABB) say “I can’t think of another pathogenic organism that is as scary as this one”. What lead Donald McNeil, writing about H5N1 in the New Yor... Read More
I would just like to start by saying thank you for the wonderful podcast.
Today I found this article (http://www.npr.org/templates/story/story.php?storyId=127226355) on npr which seems to describe a remarkably effectiv... Read More
I hear from many readers that they routinely get the flu vaccine every year, yet they often contract the disease. I usually tell them that the vaccine is not perfect: it doesn’t protect everyone who gets it. Now we have the numbers to back up this statement, and they are not pretty.
As you know, we keep food in refrigerators so it will last longer. But still, sometimes you open a bag of bread or a jar of spaghetti sauce and what do you find? Mold!!
Ever wonder exactly what mold is? And how did it get there? And why sometimes it’s green and other times black or wh... Read More
Having upped my daily dose of podcasts I stumbled upon This Week In Science. The latest show (http://www.twis.org/audio/2010/03/09/438/) they mentioned something that probably comes within your sphere of interest, namely the fin... Read More
Gentlemen, I think you'll find that Dylan Thomas was Welsh, not Irish. Though you are of course correct on his penchant for writing and
Dear TWiV Doctors,
I have one question and one co... Read More