I'm sorry but:
Is the Malaria another word for Zika virus?

Malaria is caused by species of the genus Plasmodium, a protozoan, an eukaryote. It's a parasite of red blood cells. It's been known for centuries.
Zika is a virus. It's only been talked about in the last couple of years.
It's like comparing an elephant with bacteria.
Anyway, it's mostly present in the Amazon and thereabouts. It looks like she got the worst species, Plasmodium falciparum to get so ill.
The best way is to use mosquito repellents, but for some mosquitoes it doesn't work well, particularly if the person sweats a lot. So, I've been told by experts.
Glad to know she is recovering.
Just a reminder for everyone travelling outside of Europe, and even within Europe, to make sure to get proper health travel advice. And to follow it.