See links below for the reports of the two recipients of the Porterfield Prize 2015.
Chong Long Chua travelled from his home laboratory in Kuala Lumpur to that of Professor Andres Merits in Estonia, to undertake the reverse genetics of Chikungunya viruses, isolated in Malaysia, in order to study the neutralization epitopes of these viruses
Yannick Debbing travelled from his home laboratory in Leuven to that of Professor Bruno Canard in Marseille to develop an in vitro assay for the Hepatitis E virus RNA polymerase.