The coronavirus pandemic is posing a serious challenge to the business models of low-cost airlines which have relied on high seat occupancy and aircraft operating rates.As they restart more flights grounded since February, some are using their aircraft for cargo transportation and others are trying to balance infection prevention with profitability until social distancing rules can be safely eased and air traffic demand returns to normal.But some aviation industry experts say that low-cost carriers will likely need to start devising new business strategies instead of just weathering the sto…READ FULL ARTICLE