Travel
The best way to reach Vilnius is through Vilnius Airport
Vilnius Airport is the largest commercial airport in Lithuania. The airport is located on a plateau in the south of Vilnius. It is only 7 km or 15 minutes drive by car from the centre of the capital.
More information at https://www.govilnius.lt/amazing-vilnius/travel-to-vilnius
You may also consider flying to Kaunas Airport
Kaunas Airport is the second busiest civil airport in Lithuania after Vilnius Airport and the fourth busiest in the Baltic states. The airport is located in the central part of the country, 14 km (8.7 mi) northeast of Kaunas city centre and 100 km west from the capital Vilnius.
There is a shuttle service from Kaunas airport to Vilnius https://www.ollex.lt/en/express/Kaunas-airport/buy-a-ticket
Accommodation
Vilnius Park Plaza hotel is the hotel that is very close to the Faculty of Medicine, where the meetings will be held on most of days. Info about hotel https://www.vilniusparkplaza.com/
You may also consider some options located between Faculty of Medicine and Vilnius Old town. You may find some suggestions here https://www.govilnius.lt/meet-in-vilnius/hotel-list