LONDON, United Kingdom (AFP) — One dose of the Pfizer or AstraZeneca vaccines reduces the chances of someone infected with coronavirus from spreading it to other household members by up to 50 percent, according to a English study published Wednesday. The Public Health England (PHE) research found that those who became infected three weeks after receiving their first jab were between 38 and 49 percent less likely to pass the virus on to their household […]