Trust in vaccines . . . and other stories

ABSTRACT

Vitamin D in older adults with covid-19 On the subject of covid-19, a randomised controlled trial from seven centres in France compared outcomes among older adults given high (400 000 IU) or standard (50 000 IU) doses of oral cholecalciferol within 72 hours of a diagnosis. Ultraviolet radiation and risk of cancer Although exposure to ultraviolet (UV) radiation is a major risk factor for melanoma, sunlight increases vitamin D levels, which might protect against other types of cancer. Stratified by cumulative average exposure to UV radiation, increasing levels of exposure carried a greater risk not only of melanoma but also of non-cutaneous cancers (Am J Epidemiol doi10.1093/aje/kwac101).