MSF will closely monitor any contact between the girl and her father while she is in foster care.
The fleet will be replaced after the mid-2030s.
The number of lanes will be cut to three from four and all vehicles will be diverted to the right.
The wave will peak in the next two to four weeks, said Health Minister Ong Ye Kung.
Increased patrols and enhanced checks will be conducted on travellers and means of transportation.
The study monitored the prices of over 100 common hawker food items across 1,700 stalls.
She was one of the five family members arrested on 17 May.
The trials of a Grab delivery rider.
His case has been adjourned to 12 June.
Sparks from a mobile phone are believed to have started the incident.