WASHINGTON, United States (AFP) — US pharmaceutical company Pfizer on Tuesday asked regulators to authorize its Covid pill after it was shown to cut hospitalization or death by nearly 90 percent among newly-infected high risk patients. The move comes a few weeks after Merck also approached the Food and Drug Administration seeking a green light for its antiviral capsule against the coronavirus. Experts see the oral medications as an invaluable addition to vaccines in the […]