Yes she did deliberately correct it. Here is the original quote by Dr Mistry as referenced in the clip. He refers to pregnant people, she changes it to pregnant women
Dr Malcolm Mistry, at LSHTM, said: “Exposure to temperatures in the high 20s or low 30s may not seem dangerous, but they can be fatal, particularly for people aged over 65, infants, pregnant people, and those with pre-existing health conditions.”