Antarctica was one of the last places on Earth to be affected by the virus, but on December 21, an outbreak was reported at a Chilean army base, with 36 people infected.
The AstraZeneca shots, produced by India's Serum Institute, account for most of the 35 million coronavirus vaccines administered in the country so far.
The suspensions have provoked intense debate over whether it was prudent to put AstraZeneca inoculations on hold just as vaccination campaigns were beginning to gather pace.
The Sindh health department told the cabinet that during COVID-19 pandemic, the provincial response to combat coronavirus was characterized by mixed public and private delivery of care.
Germany, France, Italy and several other countries have temporarily paused use of AstraZeneca -- developed alongside Oxford University -- over blood clotting fears.