Could be used in Tina's case; see below, second paragraph.

Anti-Malarials
If you are being returned to a country with a high malaria risk, children under five, pregnant/breastfeeding women are at very high risk if adequate anti-malarials are not taken, children over five, adults are less at risk but are still advised to take anti-malarials.

In some cases mostly children under five, there is a period required for inoculation to become effective, the Home Office cannot remove a child until the inoculation period is up.

Parent/s needs to go to Yarl's Wood Health Centre and ask for appropriate anti-malarials.

Information from Medical Justice:

(non) provision of appropriate anti-malarials - Medical Justice website:
 http://www.medicaljustice.org.uk/content/blogcategory/39/84/

Risk of malaria infection, including potential death of children
 http://www.medicaljustice.org.uk/content/view/73/84/

Medical Justice: contact details
 http://www.medicaljustice.org.uk/content/view/244/102/

Many detainees, including children, get malaria in their home country having been removed from the UK without having been provided with adequate or any anti-malarials. People lose their immunity after about 3 months of being away from their home country where malaria exists.

Once infected, a child's condition may deteriorate quickly and children can die within 48 hours after the first symptoms appear.

If untreated, malaria can lead to severe anaemia, organ damage, convulsions, coma and death. An estimated one million people in Africa die from malaria each year, 90% of these deaths occur in sub-Saharan Africa. 71% of all deaths from malaria are in children under 5. A child's most vulnerable period begins at six months, when the mother's protective immunity wears off and before the infant has established its own robust immune system. Malaria kills a child every 30 seconds. 300 to 500 million clinical cases of malaria are documented each year worldwide, 90% of them in Africa.

Babies/children under five must be fully protected from malaria prior to travel.

If baby is 5kg or more she can take Mefloquine if there are no contraindications [eg fits]. Mefloquine must be started 2 and a half weeks prior to departure to establish tolerance and ensure effectiveness. [ if She is under 5kg [ unlikely] there is no effective prophylaxis for this area.][ See idi instructions for detention centres]

[note- a child of more than 11kg can take Malarone which can be started 24 hours prior to arrival at destination]

[note also- the mother will have lost any immunity she could have passed through the breast milk and the child will have no immunity as was born here]

Mefloquine is used to prevent malaria (malaria prophylaxis) and also in the treatment of chloroquine-resistant falciparum malaria. As mefloquine resistance spreads, mefloquine has started to lose its efficacy.

Mefloquine is the drug of choice to treat malaria (though not necessarily to prevent malaria) caused by chloroquine-resistant Plasmodium vivax.[1]
Malarone, this medicine is taken every day, starting 24 to 48 hours before entering the malarious region. It should be taken throughout the stay, and continued for a week after leaving the malarious area.

update