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Biden again tests positive for Covid, returns to isolation
Antibody combination treats Omicron infections
Reinfections, severe outcomes more common with Omicron BA.5 variant
Islamabad Diarrhea outbreak: 2157 cases reported in July
COVID positivity ratio declines to 3.15pc: NIH
First monkeypox death outside Africa recorded in Brazil
US sets $1.74 bln deal with Moderna for updated COVID vaccine