Medical milestones, landmark publications, and notable births and deaths associated with June 29.

Events

2011 — The Wyoming Department of Health investigated two cases of Campylobacter jejuni enteritis among sheep-ranch workers; both infections were linked to the use of teeth as improvised tools during lamb castration, an exposure not shared by other workers who used standard techniques. Public health advice emphasised hand hygiene and age-appropriate castration methods (e.g., Burdizzo, rubber rings, surgery) and not oral instrumentation.

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Births

1853 – Ernst Adolf Gustav Gottfried von Strümpell (1853-1925) was a German neurologist. Described Strümpell Signs (1899), collection of clinical signs found in patients with pyramidal tract lesions

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Deaths

1881 – Auguste Gabriel Maurice Raynaud (1834-1881), French physician; described Raynaud syndrome (1862)

1961 – Georges Charles Guillain (1876-1961), French neurologist; described Guillain- Barré syndrome (1916), Guillain-Mollaret triangle (1931), Garcin-Guillain syndrome (1927), Guillain sign (1923), Guillain-Betrand-Lereboullet syndrome (1934), and Guillain-Thaon syndrome (1905)

1989 – Grant Winder Liddle (1921-1989), American endocrinologist; described Liddle Syndrome (1963), and introduced the dexamethasone suppression test (DST) (1960)

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Further reading

• Pride KR. Notes from the Field: Campylobacter jejuni Infections Associated with Sheep Castration — Wyoming, 2011. CDC: Morbidity and Mortality Weekly Report (MMWR)