Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

What is Malaria?
Malaria is a potentially fatal blood disease
caused by a parasite that is transmitted to
human and animal hosts by mosquitoes.
The human parasite, Plasmodium falciparum, is
dangerous not only because it digests the red
blood cell's haemoglobin, but also because it
changes the adhesive properties of the cell it
inhabits. This change in turn causes the cell to
stick to the walls of blood vessels.…read more

Slide 3

Preview of page 3

Here's a taster:

The Malaria Life Cycle
1. Mosquito bites an infected man and takes up parasites.
2. The parasites are then injected into a healthy man/woman via the
same mosquito
3. The parasites enter the liver cell and reproduce
4. They then escape from the liver cell where they enter a red blood
cell
5. They reproduce
6. Then escape and enter a new red blood cell.
7. The infection continues...…read more

Slide 4

Preview of page 4

Here's a taster:

How is Malaria spread?
Malaria is spread by female mosquitoes. The
parasite which causes malaria is found in the
female mosquitoes saliva. When a person is
bitten by a female mosquito, the parasite
enters the bloodstream via the mosquitoes
saliva.
A pregnant woman can pass malaria onto her
baby. Someone using a needle that has been
used by a person with malaria can infect that
person. Having a blood transfusion from
someone who has malaria can also pass it on to
someone else.…read more

Slide 5

Preview of page 5

Here's a taster:

Symptoms of Malaria
Symptoms of malaria usually appear 10-15 days after
you are bitten.
Symptoms of malaria are similar to flu symptoms
and include:
a high temperature (fever) of 38°C or above
sweats and chills
generally feeling unwell
muscle pains
headaches
Cough
Diarrhoea…read more

Slide 6

Preview of page 6

Here's a taster:

Falciparum Malaria
Falciparum malaria is the most serious type of
malaria and can develop very quickly into a
severe, life-threatening illness .
Symptoms can develop as quickly as eight days
after you are bitten. Without treatment, you
rapidly develop complications, such as
breathing problems, fits, liver failure and
shock.
The most serious complication occurs when
the falciparum parasite gets into the brain's
blood vessels. This can lead to a coma and
death.…read more

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »