Volume 22, Number 9—September 2016
Dispatch
Mutation in West Nile Virus Structural Protein prM during Human Infection
Table
Days after infection† |
Days after illness onset‡ |
Serum, copies/mL |
Urine, copies/mL |
Serum IgM (ELISA result)§ |
Serum IgG (ELISA result)§ |
Serum neutralization titers‡ |
Amino acid in prM 20 (%) |
---|---|---|---|---|---|---|---|
14 | 7 | 6 × 10¶ | Pos 1.8 | Neg | Neg | T(100) | |
19 | 12 | 8.8 × 107¶ | ND | ND | ND | T (100) | |
22 | 15 | 2.5 × 104 | 2.3 × 106¶ | Pos 8.07 | Int 1.35 | 1:20 | T (100) |
23 | 16 | 3.6 × 103 | 2 × 106 | Pos 8.16 | Int 1.35 | 1:20 | |
24 | 17 | 8.3 × 103 | 4.1 × 106 | Pos 8.12 | Pos 1.65 | ND | |
25 | 18 | 1.2 × 104 | 2 × 106 | Pos 8.29 | Pos 1.98 | 1:20 | |
26 | 19 | 1.8 × 104 | 1.8 × 106¶ | Pos 8.04 | Pos 1.95 | ND | T (100) |
35 | 28 | 1 × 104 | 1.3 × 105 ¶ | Pos 8.30 | Pos 2.91 | 1:40 | I (80), T (20) |
50 | 43 | 6 × 102 | 8.5 × 103 | Pos 8.20 | Pos 3.27 | 1:40 | |
54 | 47 | 2 × 103 | 6 × 102 | Pos 8.15 | Pos 3.43 | 1:40 | |
61 | 54 | Neg | 1.1 × 104 | Pos 7.94 | Pos 3.49 | 1:40 | |
68 | 61 | Neg | 6.8 × 101 | Pos 7.42 | Pos 3.54 | 1:40 | |
76 | 69 | Neg | Neg | Pos 7.35 | Pos 3.61 | 1:40 |
*I, isoleucine; Int, intermediate; ND, not done; Neg, negative; Pos, positive; T, threonine.
†Based on patient’s memory of being bitten by a mosquito.
‡Days after start of headache, abdominal pain, nausea, and fever.
§Results of ELISA IgM and IgG given in relative units.
¶Sample sequenced.
Page created: August 16, 2016
Page updated: August 16, 2016
Page reviewed: August 16, 2016
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