This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Causal versus suppressive malaria prophylaxis

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Causal versus Suppressive Malaria Prophylaxis

Causal malaria prophylaxis

Causal prophylaxis is directed against the liver stage of the malaria parasite, which takes approximately 7 days to develop (see life cycle diagram).

Successful drug activity at this stage prevents the parasite from progressing to infect red blood cells. Causal prophylactics need to be continued for approximately 7 days after infection

It is important not to confuse liver-stage schizonts with hypnozoites. All 5 species of human malaria have liver-stage schizonts but only P. vivax and P. ovale have the hypnozoite stage, against which causal prophylaxis is NOT effective

Suppressive malaria prophylaxis

Suppressive prophylaxis is directed against the red blood cell stages of the malaria parasite and thus needs to be taken for several weeks to prevent infection.

Therefore, suppressive prophylactic drugs should be continued for 4 weeks after leaving a malarious area.

 

Reference:

  • Public Health England. Guidelines for malaria prevention in travellers from the UK 2019

Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page