Infectious disease expert posits that post-COVID vaccine fatigue and skepticism, as well as 'immunological debt' are at play

Two cases of diphtheria reported in Australia, as experts say phenomenon is caused by same vulnerability that brought polio in Israel -- missed routine vaccines during the pandemic

Health experts warn the coronavirus pandemic is already denying untold numbers of patients treatment for illnesses such as tuberculosis, pneumonia and malaria

Population growth, loss of natural habitats likely to bring wild animals into more contact with humans, easing way for infectious diseases to jump between species