Who would have thought it? A cuddly toy in the shape of a virus! These cuddly characters are incredibly endearing and educational too. Each one comes with a detailed scientific description and photograph of what he looks like under the microscope, along with medical tips on how to avoid picking up these bugs in daily life. Children seem to be totally fascinated by them, and it really helps when explaining all about why they are feeling poorly. The perfect gift to accompany a Get Well card. Also a brilliant present for medical students, doctors and nurses etc. You will soon understand why they are becoming amazingly popular! Start collecting now.
FACTS: Technically, all that penicillin does is to inhibit the enzyme
transpeptidase in gram-positive bacteria preventing the crosslinking
of the peptidoglycan polymers. But that is enough to change the
It is commonly known that Scottish scientist Alexander Fleming
discovered the antibacterial effects of Penicillium (from the Latin
for paintbrush, Penicillium the mold produces penicillin the antibiotic
agent) in 1928. He returned to his lab after a long-weekend and
noticed that the growth of Staphylococcus aureus bacteria in a
petri dish he had forgotten to clean was constrained.
What is less well known is that Penicillium's special aptitudes had
been noticed by a French medical student named Ernest Duchesne
in the late 1890's - and indeed, that the properties of molds had
attracted the attentions of a number of scientists in the proceeding
decades. In fact, the ancient Egyptians and Chinese rubbe<;t moldy
breads and soybean curbs on skin infections thousands of years ago!
Fleming was never able to isolate the penicillin agent, and it was not
until World War II, when the hope of treating injured soldiers spurred
antibiotic research, that Howard Florey and Ernst Chain managed to
do so. However, not all strains of Penicillium produce penicillin equally
well (or at all). Commercial production of the miracle drug was limited
until an exceptionally productive strain of Penicillium was discovered
on a moldy cantaloupe melon from a market in Peoria, Illinois.