Volume 12, Number 6—June 2006
Dispatch
Mixed Cryptosporidium Infections and HIV
Vitaliano Cama*†, Robert H. Gilman†‡, Aldo Vivar§, Eduardo Ticona¶, Ynes Ortega#, Caryn Bern*, and Lihua Xiao*
Table
Results of multilocus genotyping of Cryptosporidium specimens originally diagnosed as Cryptosporidium canis and C. felis by an SSU rRNA–based PCR-RFLP tool*
| Participant | No. specimens tested | No. days between first and last specimen | Cryptosporidium genotype by locus (no. specimens) | |||
|---|---|---|---|---|---|---|
| SSU rRNA | COWP | DHFR | Mixed infection | |||
| 0043D | 7 | 29 | C. canis | – | – | No |
| 0214D | 2 | 5 | C. canis | – | – | No |
| 0448D | 4 | 45 | C. canis | C. hominis (1) and C. meleagridis (2) | C. hominis (2) and C. meleagridis (2) | Yes |
| 1083D | 1 | – | C. canis | – | – | No |
| 1322D | 2 | 2 | C. canis | – | – | No |
| 0002D | 1 | – | C. canis | – | – | No |
| 0034D | 7 | 56 | C. canis | C. parvum (2) | C. parvum (2) | Yes |
| 0482D | 1 | – | C. canis | C. hominis (1) | C. hominis (1) | Yes |
| 0500D | 1 | – | C. canis | – | – | No |
| 0533D | 3 | 3 | C. canis | – | – | No |
| 0670D | 4 | 414† | C. canis | C. hominis (4) | C. hominis (2) | Yes |
| 0725D | 1 | – | C. canis | – | – | No |
| 0044A | 1 | – | C. felis | C. meleagridis (1) | C. meleagridis (1) | Yes |
| 0076A | 4 | 31 | C. felis | C. hominis (3) | C. hominis (1) | Yes |
| 0668A | 3 | 3 | C. felis | C. hominis (1) | C. hominis (2) | Yes |
| 0673A | 5 | 31 | C. felis | – | – | No |
| 0817A | 2 | 2 | C. felis | – | – | No |
| 0891A | 1 | – | C. felis | – | – | No |
| 1344A | 3 | 3 | C. felis | – | – | No |
| 0569D | 2 | 2 | C. felis | – | – | No |
| 0776D | 1 | – | C. felis | – | – | No |
*PCR-RFLP, polymerase chain reaction–restriction fragment length polymorphism; SSU, small subunit; COWP, Cryptosporidium oocyst wall protein; DHFR, dihydrofolate reductase gene.
†Specimens correspond to 2 visits 14 months apart.
