It's not panic. It's reality. Many of us did the same. I went with 2 weeks worth of food, water and toiletries and we already have the usual stock which including refrigirated stuff should be enough for full month if needed. When you see small towns put into quarantine in Europe allowing people in and out only with 'written permission' you know you should prepare family and yourself asap. Get food, water, medicine and everything that might make life easier for you and your family during weeks of quarantine.