from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various broad-spectrum antibiotics, closely related to the penicillins, that were originally derived from the fungus Cephalosporium acremonium.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a class of natural and synthetic antibiotics developed from Cephalosporium fungi, having a cepham structure.
from the GNU version of the Collaborative International Dictionary of English
- n. any of a class of chemical substances, some of which have therapeutically useful antibacterial activity, whose structure contains a beta-lactam ring fused to a six-membered ring containing a sulfur and a nitrogen atom. The first of the series, cephalosporin C, was discovered by G. Brotzu in 1955 in the culture broth of a Cephalosporium species found off the coast of Sardinia. Other cephalosporins have been found to be produced by species of soil bacteria (actinomycetes). Many semisynthetic analogs have been tested for antibacterial effect, and several of them have found use as important clinically useful antibacterial agents, some of which may be taken orally for treatment of bacterial infections. The cephalosporins are the second class of beta-lactam antibiotic to be discovered, the first being the
penicillinsand more recent classes being the thienamycinsand sulfazecins. The cephamycins are a variant of cephalosporins with a methoxyl group on the beta-lactam ring, rendering them more resistant to penicillinases. Among the cephalosporins which have been found clinically useful are cephalexin, cephaloridine, and cephalothin.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity
Alternately maudlin and accusatory, the letter plays on terrorism fears by calling a cephalosporin ban a "food security issue" affecting "the number of animals available for the food supply."
But eventually those stopped working, too, and in 2007 the CDC changed its guidelines and recommended treatment with yet another class of antibiotics, called cephalosporin.
Cephalexin is in a group of drugs called cephalosporin antibiotics.
Newer types of anibiotics, such as cephalosporin or quinolone, are also effective.
During the study period, the percentage of gonorrhea samples exhibiting elevated MICs rose from 0.2 to 1.4 percent of samples for cefixime (an oral cephalosporin) and from 0.1 to 0.3 percent for ceftriaxone (an injectable cephalosporin).
The process includes an "evidentiary hearing," perhaps like the cephalosporin advances.
Two months after the FDA announced a hearing about a cephalosporin "Order of Prohibition" in agriculture, the regulatory action had morphed into a "Hearing to Review the Advances In Animal Health Within The Livestock Industry" thanks to lobbyists from the egg, chicken, turkey, milk, pork and cattle industries.
But, thanks to same probable lobbying that reversed the cephalosporin ban, the FDA approved ractopamine for cattle the following year and for use in turkeys in 2009!
Cephalosporin resistant "human pathogens" aren't increasing, says the letter, and even if they are, they're not affecting human health, and even they're affecting human health, how do you know it's from the livestock drugs, and even if it's from the livestock drugs, the FDA has no legal authority to ban cephalosporin.
I'm a physician who has treated umpteen children with colds and ear infections whose parents demanded the latest third generation cephalosporin because amoxicillin "didn't work" for their kids.