Fire breaks out when heat, fuel, and oxygen meet. Without intervention, a fire will only come to an end under two conditions: when the fuel has run out, or when the oxygen supply is exhausted. In an enclosed space, when a fire can deplete most oxygen, the flames will die down while the fuel continues to burn in a smouldering state under pyrolysis. Pyrolysis does not require oxygen, so it can take place without fire at or above 500C and turn organic compounds into charcoal, tar, or non-condensable gases. These gases have extremely high thermal values ready to burst into fireballs as soon as fresh oxygen re-emerges from any new opening. This is called "backdraft", and is what happened in the Mountain B Pub fire.
Round One of Coronavirus Vaccines for UM Personnel Administered
It was a slightly smaller first allotment than hoped for, but more is on the way for University of Montana Phase 1A personnel.
According to UM News Services, the University of Montana began its first round of vaccinating employees who fall under the Centers for Disease Control and Prevention Phase 1A category for receiving the COVID-19 vaccine. Staff in UM’s Curry Health Center administered more than 100 doses of the Moderna vaccine to University employees who are considered health care personnel or have close, regular contact with COVID-positive persons as essential workers. That is, staff who work directly with patients, those who are testing students and those in health science fields. Also vaccinated were a number of their police force who are often transporting positive students.