Age group [years]	229E RT-qPCR
Age group [years]	Negative	[%]	Positive	[%]	Total	[%]
0 - 30	16	[20.3]	0	[0.0]	16	[20.3]
31 - 60	18	[22.8]	2	[2.5]	20	[25.3]
61 - 100	38	[48.1]	5	[6.3]	43	[54.4]
Total	72	[91.1]	7	[8.9]	79	[100.0]