Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.According to MIT Medical, by the time a person reaches adulthood, their immune system has already had exposure to plenty of bacteria and viruses and is able to mount an attack against these invaders.
Because of this, the immune system has already learned how to destroy these microbes and will not forget, even in the wake of long-term lockdowns.But what about younger children, whose immune systems are still in the learning phase?Many parents and caregivers will be familiar with the so-called hygiene hypothesis, even if they do not know it by name.