[3] He then took a postgraduate degree in microbiology and serology in 1933, after which he moved to France for two years to pursue a diploma in colonial medicine.

He worked at the Pasteur Institute and the Hôpital Saint-Louis until the outbreak of the Second World War when he joined the Polish Army Medical Corps.

[4] While serving with the Polish Army in Britain, Bruce-Chwatt earned a Diploma in Tropical Medicine and Hygiene and the Duncan Medal at the LSHTM.

[3] In 1958 Bruce-Chwatt became Chief of Research and Technical Intelligence in the Malaria Eradication Division of the World Health Organization in Geneva, where he remained for the next 10 years.

He also received the George Macdonald Medal awarded by the Royal Society of Tropical Medicine and Hygiene and LSHTM IN 1981.