Eats, Shoots and Leaves - S1-E11
Factual error: They travel to Zambia along the Luangwa to search for leopards and the locals speak Swahili. In that region of Zambia they speak Nyanja or Bemba. I lived in Northerm Zambia for a few years and all the way up to the Tanzania border it was not common for anyone to know Swahili.
Answer: My assumption would be a simple "it's not important" explanation. It's one of those typical selfless things in film where the characters don't provide specific information as to not make other characters worry about them, in addition to her intelligence background she may have just thought it would distract them from their main goal. Nothing really "happened" to her that would really drive plot development either, as she was quickly rescued from the situation. A similar example would be when Chloe called right after the speech she gave, Jamie doesn't tell her that Jackson was shot, just that he was hurt and that he'll be OK. We can assume that she just doesn't want Chloe to worry about him.