According to the highly placed sources in Colombo, both will head to hotel and home respectively and remain isolated for four more days.
"Arthur will be able to join the team for coaching on 17th or 18th February. However, Lahiru Thirimanne will not be rushed to join the training", the source, speaking exclusively over the telephone, said.
"Lahiru will undergo cardiac assessment after four days. Cardiac assessment in the case of Lahiru is required because he is an active sportsman. We recommend it even for dengue recovered patients also", the source further added.
In the meantime, Sri Lankan players underwent fitness tests at the R. Premadasa Stadium on Friday.
All fitness tests-strength, speed, and agility tests were completed on day one only. No more tests are scheduled on Saturday.
The fitness tests were supervised by Grant Luden, trainers, and team physician KAP Kiriella.
At the time of going to press, the results were not known.
The players also gave anti-doping tests also.
The revised dates for Sri Lanka's tour of the West Indies will be announced soon, according to Johnny Grave, the CEO of the CWI board.
"Our meeting (with the SLC) went well. We are trying to finalize a revised schedule with SLC. Hopefully, we can announce it soon", he said over the telephone from Antigua.