In its latest snapshot of pandemic activity, cases rose 10% last week with upticks across several regions, the World Health Organization (WHO) said, marking a continuing reversal of a decline in the first months of the year.And in vaccine developments, the WHO said the benefits of the AstraZeneca-Oxford vaccine outweigh any risks and immunization should continue, though expert groups are still reviewing the latest safety data.Several hot spots fuel rising casesAll of the WHO regions saw increases last week except for Africa, though 80% of the new cases and deaths were from the Americas and Europe, the group said in its weekly situation report.