Articles AN INVESTIGATION OF DIPHTHERIA CARRIERS Br Med J 1931; 2 doi: https://doi.org/10.1136/bmj.2.3690.566 (Published 26 September 1931) Cite this as: Br Med J 1931;2:566 Article Related content Metrics Responses Peer review Related articles No related articles found. See more Covid-19: Annual flu-like booster approach may not be appropriate, says expert on infectious disease BMJ January 25, 2023, 380 p196; DOI: https://doi.org/10.1136/bmj.p196 How are covid-19 symptoms changing? BMJ January 18, 2023, 380 p3; DOI: https://doi.org/10.1136/bmj.p3 The group A strep crisis: can we do better? BMJ January 10, 2023, 380 p58; DOI: https://doi.org/10.1136/bmj.p58 England and Wales see rise in excess deaths amid flu surge BMJ January 06, 2023, 380 p40; DOI: https://doi.org/10.1136/bmj.p40 When will the world get cancer vaccines? BMJ January 06, 2023, 380 o3041; DOI: https://doi.org/10.1136/bmj.o3041