Two people spend an evening in the same garden and receive roughly the same number of mosquito bites. By morning, one barely notices them – while the other is covered in large, swollen, intensely itchy welts that linger for days.
Most of us have experienced this, or know someone who has. But why is it that mosquito bites affect some people so differently? The answer lies in the way a mosquito’s saliva interacts with our unique immune system.