The 4th, 5th and 8th grade kids had wrongly received vaccines against covid-19, or against the human papillomavirus (HPV) or the DPT drug, which is against diphtheria, tetanus and pertussis.

However, if the air is particularly warm and humid, and the atmosphere above is much colder, cumulus clouds can rapidly grow ...

Millions of people in Chile had their routines disrupted by an almost nationwide power cut. Media reports say some power has been restored in parts of the capital, Santiago. Research in Chile ...