Washington Gov. Jay Inslee announced Tuesday that he is extending current restrictions on businesses and social gatherings through Jan. 4 due to a continued spike in new coronavirus cases that is straining the state’s hospital system.  Inslee said the issue isn’t just hospital space, but the number of people available to provide care is strained because of a lack of available reserve personnel available.  He noted in the spring personnel could be sent to virus hotspots, but that’s not available with the entire state dealing with increased COVID numbers.  The current set of restrictions that took effect last month — including limiting restaurants and bars to to-go service and outdoor dining — were set to expire this coming Monday, but will now be extended an additional three weeks.  Indoor social gatherings with people from more than one household are also prohibited unless attendees have either quarantined for 14 days before the gathering or tested negative for COVID-19 and quarantined for seven days.  Inslee also announced $50 million in additional grants for businesses, on top of the $135 million in grants, loans and other assistance he announced two weeks ago to help businesses and workers impacted by the restrictions.