Where can Neisseria Meningitidis be found?
N.
Meningitidis mainly resides in the nose and throat of
humans. It can be found in about 2-8% of humans
that are carriers of the bacteria in a normal setting.
The bacteria is found in much higher percentages in
areas where many people are living together. At
some military camps, for example, as high as 40% of the
people are carriers of the bacteria. N. Meningitidis cannot grow at temperatures below 30°C.
This bacteria can also only grow where fatty acids and
trace metals are also present. The nose and throat of
humans is perfect because of the warm temperatures in
both of these areas.
There are many strains of N. Meningitidis that have
cause epidemics around the world. The most
important strains are A, B, C, X, Y and W135.
Strain A is found most often in Sub-Sahara Africa.
Strain B is found mainly in the United Kingdom and an
epidemic of this strain was also reported in New
Zealand.
Strain C is has caused epidemics in the United Kingdom.
Strain Y has emerged as the cause of disease in North
America.
Strain X was reported to cause an outbreak in Niger.
Strain W135 has shown up along the annual pilgrimage to
Mecca especially in the country of Saudi Arabia.
Since N. Meningitidis is
non motile there have not been many adaptations that it
has had to make. Its habitat, which is the nose
and throat area of
human beings, does not go under drastic temperature
changes or environmental changes. This bacteria
has become resistant to penicillin and some antibiotics
in some of its forms however.
Getting Bored? Just wait until you see its
Reproduction!