Home - CONTACT US Contact Us Love to hear from you! You can call us in working time or visit our office. All mails will get the response within 24 hours. Love to hear from you! Address Vaccine Trial Centre, Faculty of Tropical Medicine Mahidol University420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand Contact Tel : 02 643 5599Fax : 02 643 5598Email : contact@vaccinetrialcentre.org Hour of operation Monday – Friday: 08:00 am – 16:30 pmSaturday – Sunday: Closesd If you have questions about Vaccine Trial Centre Click here