RINGWORM
Ringworm, also known as "Tinea", is
an infection of the skin, characterized by a reddish to brownish raised or bumpy
patch of skin that may be lighter in the center, giving the appearance of a
'ring'. Contrary to its name, ringworm is not caused by a worm but by parasitic
fungi (Dermatophytosis). It can exist anywhere on the body.
Fungi are
tiny organisms that survive by eating plant or animal material, those that cause
parasitic infection (dermatophytes) feed on keratin, the material found in the
outer layer of skin, hair, and nails. These fungi thrive best on skin that is
moist, hot, and hidden from the light. Together with the other dermatophytosis,
up to 20 percent of the population has one of these infections at any given
moment.
Ringworm is very common, especially among children, and may be spread by skin-to-skin
contact, as well as via contact with contaminated items such as hairbrushes
or through the use of the same toilet seat as an infected individual. Ringworm
spreads readily, as those infected are contagious even before they show symptoms
of the disease. Participants in contact sports such as wrestling have a risk
of contracting the fungal infection through skin-to-skin contact.
Ringworm
is mildly contagious. Ringworm is also a common infection in domestic animals,
especially farm animals, dogs and cats. Humans can contract ringworm from these
animals as humans are in close contact with them. Chickens may also be a source,
due to the dirty conditions in which many poultry must live in which ringworm
may thrive. Ringworm can also be caught from other humans, both by direct contact
and by prolonged contact with flakes of shed skin (from sharing clothes or from
house dust, for instance).To catch ringworm, you have to be exposed to it and
you have to be susceptible. Some people are much more susceptible than others.
Those with eczema or other skin problems get ringworm more easily because the
protective barrier of the skin's outer layer is less intact. Children are more
susceptible before puberty. Some people are genetically predisposed, and can
get it easily throughout life.(1)
source
: wikipedia
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