Volume 7, Number 6—December 2001
Research
The Serologic Response to Cryptosporidium in HIV-Infected Persons: Implications for Epidemiologic Research
Table 2
Serologic response from enzyme-linked immunosorbent assay, using the CP23 antigen, of the 11 cases that had blood samples after the date of clinical diagnosis, and associated controls
Case # | Before dx IgG (CD4/days)a | After dx IgG (CD4/days)a | IgG responseb | IgG peak valuec | DIgG responseb |
---|---|---|---|---|---|
1 | 204 (786/102) | 637(500/108) | 433 | 178 | 15 |
2 | 118 (259/100) | 2,376 (186/115) | 2,258 | 463 | 36 |
3 | 977 (96/134) | 12,224(18/216) | 11,247 | 233 | -70 |
4 | 342 (248/138) | 5,724 (440/44) | 5,382 | 263 | -22 |
5 | 1,084 (1,003/907) | 1,309 (M/47) | 225 | 359 | 79 |
6 | 705 (296/71) | 672 (487/369) | -33 | 414 | -80 |
7 | 611 (148/202) | 3,911 (52/293) | 3,300 | 605 | -85 |
8 | 2,200 (39/114) | 1,334 (33/73) | -866 | 973 | -32 |
9 | 891 (159/363) | 2,108 (26/34) | 1,217 | 292 | -35 |
10 | 105 (108/79) | 224 (13/92) | 119 | 187 | -144 |
11 | 102 (435/132) | 102 (472/238) | 0 | 597 | 157 |
aCD4 count and days from cryptosporidiosis diagnosis date.
bDifference in IgG response between a sample taken before and after date of cryptosporidiosis diagnosis.
cAverage of the two controls (CD4 count and sample date were matched to the respective cases).
M = missing data; IgG = immunoglobulin G; dx = diagnosis.