Add spaces: Otherpatientsexperiencethatafunctionaldisorderdevelopsafteraperiodofillness,e.g.avirusinfection.

Answer: Other patients experience that a functional disorder develops after a period of illness, e.g. a virus infection.

Add spaces: "Weareverygratefulforthemayorandallthosewhoarehelpingoutinthecity.

Answer: "We are very grateful for the mayor and all those who are helping out in the city.

Add spaces: PRMswillhaveequalchoiceofseatallocation,subjecttosafetyrequirements.

Answer:
PRMs will have equal choice of seat allocation, subject to safety requirements.