Page 100 - (DK) Danger! Open with Extreme Caution!
P. 100
BIOHAZARD GALLERY
Welcome to our Biohazard Gallery. Feel free to wander
around and examine the world’s nastiest biological hazards—
the bacteria and viruses that cause diseases. These are split
into four levels, depending on how dangerous they are. On
show today are levels 3 (to the left) and 4 (to the right). These
are especially perilous, so it is important that you don your
protective hazmat suit first. Yellow Fever
This is a clear view of the virus
(green) that causes yellow fever
in hotter parts of Africa and
South America. Spread by
bloodsucking mosquitoes,
yellow fever produces sweating
and nausea and, in serious
cases, liver damage and internal
bleeding. Fortunately, there is
a vaccine against the disease.
Tuberculosis
The first exhibit shows the bacteria Smallpox West Nile virus
that cause tuberculosis (TB)—once Take a look at a virus that’s
a killer before the use of antibiotics. Here is a rare chance to see a virus on the move. Once confined
These bacteria pass from person (red) that has been eradicated to Africa, the West Nile virus has
throughout the world by the use
to person when someone infected spread across the U.S. since
sneezes, coughs, or spits. TB mostly of vaccines. Samples of the virus 1999. It is passed on by
affects the lungs, causing constant are kept for research in a few mosquitoes that bite infected
coughing, sweating, weight loss, laboratories. In earlier times, birds and then bite people. Most
and eventually death. Worringly, smallpox was a devastating victims get a headache and
and deadly disease that
this disease is on the rise again. a high temperature, but a few
caused severe blistering suffer from inflammation of
and scarring. the brain, too.
LEVEL 3
HAZMAT SUITS
MUST BE WORN
AT ALL TIMES
100
(c) 2011 Dorling Kindersley. All Rights Reserved.

