Flu is spreading fast in Hawaii, and health officials are pushing vaccinations — bad news for anyone putting off a shot.

• Flu cases are rising sharply across the state.
• The share of flu tests coming back positive jumped from 4% to over 20% in a month.
• The Department of Health is telling people to get vaccinated now.
• Anyone who feels sick is asked to stay home to slow the spread.

Outlook: Cases will likely keep rising as the season peaks, putting more pressure on clinics and hospitals.