Naegleria is an amoeba commonly found in warm freshwater and soil. Only one species of Naegleria infects people, Naegleria fowleri. Naegleria infects people by entering the body through the nose, often occurring when people use warm freshwater for activities like swimming or diving. The amoeba c... Read More
A guest blog post by "Psi Wavefunction" on Small Things Considered explores the morphology of Heterolobosea, specifically Naegleria, a species of pathogenic free-living amoebae that have a taste for human brains. Read More
This year I started a new virology course at Columbia University. The course emphasizes the common reactions that must be completed by all viruses for successful reproduction within a host cell and survival and spread within a host population. The molecular basis of alternative reproductive cycl... Read More
On episode #69 of the podcast This Week in Virology, Vincent, Alan, and Rich review recent outbreaks of mumps in the UK, US, and Israel, protection of mice against 2009 H1N1 influenza A virus by 191... Read More
Thomas Cavalier-Smith, Department of Zoology, University of Oxford, has published a paper in which he identifies some of the key elements to understanding eukaryogenesis.
"Here I paint an integrated picture of how the nucleus, sex, and the eukaryotic cell cycle originated and congealed into ... Read More
One of the most important procedures in virology is measuring the virus titer – the concentration of viruses in a sample. A widely used approach for determining the quantity of infectious virus is the plaque assay. In this technique, the spread of progeny viruses released by individually infecte... Read More
Wine lovers will delight in this guest blog post on Small Things Considered and adaptation from an article in the January 2010 issue of Wines and Vines by John Ingraham, a retired UC Davis Professor of Microbiology, on how he and his colleagues tamed the "capricious and independent" cycle of mal... Read More
On episode #68 of the podcast This Week in Virology, Vincent, Alan, and Rich are enthralled by movies of vaccinia virus plaque formation, then consider how repulsion of superinfection virions leads ... Read More
Vincent and Dick trace the life cycle of Trichinella spiralis in an infected host.
Fragments of an abundant protein produced by the prostate form amyloid fibrils that enhance infection of cells by human immunodeficiency virus type 1. These fibrils, called semen-derived enhancer of virus infection (SEVI), have been found to boost infection of prostate cells by the retrovirus XM... Read More
Pepitas de uva antibacterianas
¿Que te queda tras haber elaborado una remesa de vino? Bueno, en primer lugar tienes una gran cantidad de desechos, inc... Read More
An introduction to viruses created by Salman Khan of The Khan Academy, a one person, not-for-profit organization with the mission of providing a high quality education to anyone, anywhere.
While the Kahn Academy has over 25 videos devoted to topics in biology, there are hundreds more in a va... Read More
On episode #67 of the podcast This Week in Virology, Vincent, Alan, and Marc Pelletier talk about chronic wasting disease of deer caused by prions, blocking the semen-derived enhancer of HIV infecti... Read More
For thousands of years, epidemics of contagious diseases were believed to be caused by the wrath of the gods, configuration of stars, or miasma. The association of specific microorganisms with disease came about as a consequence of the work of the German physician Robert Koch. He formulated a se... Read More
The Royal Society, founded in London in 1660 and one of the world's oldest scientific institutions, is marking the start of its 350th year by putting 60 of its most memorable research papers online. Several of these documents include papers by Sir Isaac Newton, Benjamin Franklin, and even Antoni... Read More
¿Usamos excesivamente los antibióticos?
De modo tradicional se aconseja a los pacientes que continúen sus tratamientos con antibióticos hasta bastante después de q... Read More
Small Things Considered co-blogger Merry Youle has a post about the diversity of life in McKelvey Valley, a broad, glacially-carved pass just west of McMurdo Sound in Antarctica. Her writing is inspired in part by a recent paper from the University of Hong Kong (See Read More
Tomorrow is the start of my new virology course at Columbia University. The course, Biology W3310, is aimed at advanced undergraduates and will be taught at the Morningside Campus of Columbia University. Read More