In 1843, the Hungarian scientist David Gruby—considered the founder of medical microbiology—was studying a microscopic parasite in frog blood. The parasite seemed to propel itself forward like a corkscrew, so he named the creature Trypanosoma sanguinis, after the Greek word “trypanon,” or augur... Read More
Cytomegalovirus in human foreskin tissue cells (40x) Acridine orange stain. Darl, olive green bodies in refractile cells are intranuclear inclusions. Also show paranuclear bodies which are stained darker Read More
The first HIV vaccine to be called a success has stood up to scrutiny after further analysis of the data was presented today in Paris, France. However, the new analysis also confirms that the optimistic claims, first made in September and viewed sceptically at the time, are indeed very modest.
... Read More
Twentieth century medicine was phenomenally successful at developing vaccines and antibiotics to fight infectious diseases, taming ancient scourges such as smallpox, tuberculosis and typhoid. In the 1960s and 70s, the prevailing view was that all diseases caused by microorganisms would soon be c... Read More
INTEL's latest microchip technology has created transistors 22 nanometres wide - a mere 200 times the width of a hydrogen molecule. Carving such tiny features is devilishly difficult and expensive, but in another realm of microchips altogether, something odd is happening: chips are being made on... Read More
In a pair of studies appearing online yesterday in Nature Genetics, one group of researchers identified the first systemic lupus erythematosus, or SLE, risk variants in a Chinese population while another group added to the growing list of lupus-associated genes in individuals of European descent... Read More
Babies are often given acetaminophen when they get their routine vaccinations. The drug, sold as Tylenol in the United States and called paracetamol in most countries, counters the common risk of fever and the much less common risk of fevers high enough to cause seizure.
But a new study, don... Read More
The percentage of Salmonella isolates found in ground turkey that displayed resistance to nalidixic acid dropped from 8.1 percent in 2002 to 2.6 percent in 2007. Similarly, the percentage of isolates resistant to ceftiofur dropped from 8.1 percent to 5.3 percent in that period. In contrast, the ... Read More
from the Washington Post's Science Digest:
A new strain of the virus that causes AIDS has been discovered in a woman from the African nation of Cameroon.
It differs from the three known strains of human immunodeficiency virus and appears to be closely related to a form of simian virus rece... Read More
Listed in the Guinness Book of World Records as "the world's toughest bacterium," Deinococcus radiodurans can withstand extreme temperatures and drought conditions, lack of nutrients and a thousand times more radiation than a human being.
A new study by Cornell researchers reveals that nitric... Read More
Watch out for fake cures for swine flu.
As flu season gets into full swing, con artists are peddling an increasing number of fake–and sometimes dangerous–drugs that purport to cure or prevent H1N1 to a population increasingly nervous about getting sick.
The Food and Drug Administration rec... Read More
Pet turtles are spreading potentially life-threatening salmonella bacteria in an outbreak of the illness that has sickened more than 100 people across the United States, according to a new report from the American Veterinary Medical Association (AVMA).
The AVMA said the current outbreak of sa... Read More
Loboa loboi in pus from human lesion. Chains of yeast cells are characteristic Read More
US-grown oysters will be a hassle to find from May to October once the Food and Drug Administration (FDA) implements its new plan to reduce deaths from bacterial food poisoning.
FDA's Michael Taylor said the agency will fight the fatal Vibrio vulnificus by mandating post-production processing... Read More
"It's now official: at least one pig in Minnesota has been confirmed to have had the swine flu virus, according to the Agriculture Department Monday.
The Agriculture Department was quick to point out, however, that the presence of the virus in a show pig doesn't mean commercial herds are inf... Read More
For the first time, researchers are able to look at the need for every gene in a bacterial cell in a single experiment. The new method will transform the study of gene activity and the search for weaknesses in bacterial armouries.
Using a newly developed, next-gen sequencing method, a team es... Read More
Pew Research Center for the People & the Press' latest weekly News Interest Index survey, conducted Oct. 9-12 among 1,003 adults, finds that fewer than half (46%) say news reports are presenting the swine flu's danger about right, while nearly as many (43%) say news reports are overstating the d... Read More
This is a reminder that the deadline for submissions to Round 4 of Grand Challenges Explorations is November 2, 2009, a $100 million initiative to encourage bold and unconventional global health solutions.
Anyone can apply, regardless of prior experience or institutional affiliation. Previous... Read More
Out of the trillions of "friendly" bacteria -- representing hundreds of species -- that make our intestines their home, new evidence in mice suggests that it may be a very select few that shape our immune responses. The findings detailed in two October 16th reports appearing in the journals Cell... Read More