Zika Case Definition (WHO Interim 2016)
Classifies a Zika case by WHO interim 2016 definitions: suspected (rash or fever with joint or eye signs), probable (IgM and an epidemiological link) or confirmed (RNA, antigen or PRNT).
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Rash
- Yes
- Fever
- No
- Arthralgia, arthritis or non-purulent conjunctivitis
- Yes
- Zika IgM positive
- Yes
- Epidemiological link
- Yes
- Zika RNA or antigen detected
- No
- IgM with PRNT90 titer 20 or more, 4 times other flaviviruses, others excluded
- No
Result: Probable Zika: a suspected case with Zika IgM and an epidemiological link.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Rash
- Fever
- Arthralgia, arthritis or non-purulent conjunctivitis
- Zika IgM positive (no evidence of other flaviviruses)
- Epidemiological link (confirmed contact, or local transmission area within 2 weeks)
- Zika RNA or antigen detected
- IgM with PRNT90 titer 20 or more, 4 times other flaviviruses, others excluded
How this is calculated
Citation
WHO. Zika virus disease: interim case definitions. WHO/ZIKV/SUR/16.1. Geneva: WHO; 12 February 2016. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.