Add spaces: Inthisphase,symptomsresemblinganinfectionwithheadache,malaise,painsoccurringinthehead,jaw,face,inonearm,etc.willoccur.

Answer: In this phase, symptoms resembling an infection with headache, malaise, pains occurring in the head, jaw, face, in one arm, etc. will occur.

Add spaces: -Notoolsrequiredforinstallation

Answer: - No tools required for installation

Add spaces: TherehewastaughtmathematicsbyETWhittaker.

Answer:
There he was taught mathematics by E T Whittaker .