VIRUS DIARY: In Hong Kong lockdown, watched by a wristband

HONG KONG (AP) — It took only a few seconds. Shortly after I stepped off a flight from Singapore, an official at the Hong Kong immigration counter gestured for me to extend my arm, then strapped a bulky plastic box to my wrist. And just like that, I had a new companion for the next 14 days of self-isolation — a government quarantine tracker. In online pictures, the trackers were inconspicuous devices almost like a concert wristband. Those didn’t…