So, naturalists observe, a flea Hath smaller fleas that on him prey; And these have smaller still to bite ’em And so proceed ad infinitum This verse is by Jonathan Swift, the 18th century Irish cleric and satirist. He wrote it about the time that Antonie van Leeuwenhoek began looking through the microscope and discovered …
An article in The Star of Malaysia illustrates why the public is often confused by stories about viruses in the popular press. The article reports that ‘a four-man medical research team from the University Malaya Medical Centre has achieved a first by discovering an anti-virus for dengue fever from herbs’. Let’s take apart this sentence …
From KSL-TV – Salt Lake City, UT, USA: “More than 130 people have contracted the Norovirus, a stomach illness, at Yellowstone National Park this summer. The Park’s concession workers and housekeepers were hit the hardest. “Norovirus is the same illness that sickened hundreds of cruise ship passengers earlier this year.” Contrary to what the article …
Viruses are distinct biological entities with the following properties: 1. A virus is an infectious, obligate intracellular parasite. 2. The genetic material of a virus is either DNA or RNA. 3. The genetic material of a virus enters a host cell and directs the production of the building blocks of new virus particles (called virions). …
Our latest paper has just been published in the Journal of Clinical Investigation. The title of the paper is “Poliovirus tropism and attenuation are determined after internal ribosome entry”. This is the work of a Ph.D. student in my laboratory, Steven Kauder. If you would like a nice summary of this work, there is an …
Let’s first define life. According to the online Merriam-Webster Dictionary, life is “an organismic state characterized by capacity for metabolism, growth, reaction to stimuli, and reproduction.” Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter …
