>6°(C) of separation: Exploring the difference between perceived and measured temperature.

Questionnaires exploring tourists' perceptions of ideal climatic conditions are argued to be a more suitable data source for the development of tourism climate indices than the utilization and integration of expert opinion and pre-established thresholds. This assumes that those tourist respondents can accurately quantify meteorological conditions at a given point in time, and effectively discriminate between meteorological thresholds of suitable and unsuitable conditions. For variables such as rainfall and sunshine hours, this assumption is fairly reasonable.

Vaccine Development Should Be Polytheistic, Not Monotheistic.

Vaccines based on messenger RNA technology have been tremendously successful, but their properties are not necessarily ideal for all pathogens. There is a risk that concentration on that technology alone for new vaccine development will ignore older technologies that have properties giving broader and more persistent protection.

Exploring the risk of heat stress in high school pre-season sports training, Johannesburg, South Africa.

There is growing concern over the increased risk of heat stress induced by the changing climate, with increased global temperatures expected to exacerbate conditions. Heat stress in school sports is a critically understudied research area in South Africa (SA). As demonstrated by several studies conducted in the global north, the stress elicited by meteorological conditions on students participating in physical education lessons and after-school sports activities could have serious consequences on their health.