This week scientists made a landmark discovery when ragweed – a highly allergenic weed native to North America – was detected in South African pollen spore traps for the very first time. The discovery was made by Dr Dilys Berman, an aerobiologist at UCT and Prof Jonny Peter, who heads up the UCT Lung Institute’s Allergy Unit. Palynologist, Dr Frank Neumann, based at Wits … [Read more...]