International Speakers at the London Tick-Borne disease Symposium, June, 7th 2014.     The Countess of Mar   Margaret of Mar is the 31st Countess of Mar, our oldest peerage, and has been a member of the House of Lords since 1975. When the House of Lords act was passed in 1999 to restrict the … Continue reading Symposium. Tick-borne Diseases 2014