Table 1.

Timing of collection of milk and blood samples.

Participant no.	First collection (date) [infant age, days]	Second collection (days after first collection)	Third collection (days after second collection)	Fourth collection (days after third collection)
30	8/17/04 – M,S [35]	41 days – M	36 days – M,S	–
1	9/13/04 – M,S [37]	28 days – M	35 days – M	129 days – M,S
2	11/30/04 – M,S [34]	28 days – M	28 days – M	149 days – M,S
3	12/27/04 – M,S [30]	32 days – M	35 days – M	56 days – M,S
4a	1/25/05 – M,S [31]	–	–	–
5	1/20/05 – M,S [31]	42 days – M	33 days – M	232 days – M,S
7	6/30/05 – M,S [31]	33 days – M	31 days – M	280 days – M,S
8b	7/26/05 – M,S [29]	29 days – M	34 days – M	277 days – M,S
9c	8/19/05 – M,S [33]	39 days – M	29 days – M	266 days – M
10d	10/13/05 – M,S [30]	35 days – M	35 days – M	–

Abbreviations: M, milk; S, serum.

^aOne collection only because of illness.

^bInformation available for month and year only.

^cUnable to draw blood at end of study.

^dLost contact at end of study.