# Fourth person tests positive for West Nile virus in San Diego County

> **Newsylist Open Intelligence Dossier** · First detected: 2026-08-05 15:29 UTC · Category: Health · Sources: 14 · Current Velocity: 14.03

## Intelligence Brief
"Fourth person tests positive for West Nile virus in San Diego County" developed substantial multi-source reporting across the Health sector, tracked across 14 distinct newsrooms by Newsylist.


Key reporting was led by wdtn.com, Yahoo, Hays County (.gov) and Austin American-Statesman. Coverage velocity and cross-outlet momentum were measured using Newsylist open coverage telemetry.


Synthesized from multi-source international reporting and live coverage telemetry under Newsylist open intelligence methodology.

## Verified Facts & Key Claims
### What drove coverage for Fourth person tests positive for West Nile virus in San Diego County?
Coverage spiked when 14 independent newsrooms published 15 verified reports during this coverage cycle.

### How did Newsylist track this trend?
Newsylist monitored article arrival rates, source diversity, and cross-outlet validation in real time.

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| wdtn.com | Public health to spray Wegerzyn MetroPark | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMihgFBVV95cUxNTV9ydVNMWC12Y2FMcGNwUUd5RWF5UmtjVHJ4T0M0MmYyQWVOZm9selBYS0Q1OExfS0s0Z1hCV1VBc1lWcVJ6cC1rNmJCM2ZfQ2c2TmJrMzBmZjduUWljZ0FxclZRNU5jRDIxaVdNQlhhblV5RU44MDM0cmJTMzlDSWFlX1otUdIBiwFBVV95cUxPcUFWOXdFNk9tYXZZaTZ4Sml2QWlvbDN4N1F2NzY0aFNYTnJFMVl6eE5ZRTdPZFNhWGVhaTg1OTJJeXBfVEVzZDR4THNNYTVVZm5JZ1BjZG5LcGltd3NZTlJqY3cwOVN6OXJBcFVVWjNnV2cxRFRYNjNtT0UyY3ZyWHBqc0U0S255aUY4?oc=5) |
| Yahoo | West Nile-positive mosquito traps rise in Williamson County after rainy spring | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMingFBVV95cUxOdGJUZjlLT3gtVHd0M2JOdGRka290ZUNGdV9hZzBjeVFxWXVZRDJlbjFfek1nTEQ5SjFkemNVcTMxSzRsc01semxKQ1MxODAtZWc0OXBob3hlZzI2NFI0N2liRUNqTnRUR0xSMmlLMlZObVlBcGdCdi1aRGRNcjJ0ZzBOVzhFWnc3eDdhd1BfMTlFOVRSeXR0WENWbUNvZw?oc=5) |
| Hays County (.gov) | Buda mosquito trap tests positive for West Nile Virus | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMiYkFVX3lxTE1ieFdaVVNmaENfYnRZNHVndm03dE5WNFZ0bkN1THNBSmszVUJ4RjFFbTdBMGdhdGdlTnBuN3B1NmFiNktPRXFONnJEb2JYZ19md20wSkw1cGh3d081U0xpY3Vn?oc=5) |
| Austin American-Statesman | Which local county is seeing a spike in mosquitoes with West Nile? | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMiqAFBVV95cUxNSU9nMDVhWHA1UzVWWUNBVUxwVHhBc181amk1UndfbVNJemlOVE5uamFrMFZxN1I1Mll1NGRWRThzM2NDRE43cXpha3NFNHNyR0RnVE1pbXdoTVlyTDJrRjI3QzlZbWxZM1hDZVJzdHRveW4zanJxNFRJOXgtcFU1YVdOb0hLNWxXaFc5RWZsRkVDUFR3NjdSdFVmY3Q4Y3I0WnMxbUJhZHY?oc=5) |
| Click2Houston | Mosquitos in Brazoria County test positive for West Nile Virus | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMitgFBVV95cUxQMHUyZmxObnFrNG1sT1JGZjdYMURKSS0tdFRDV0lSanJ1X05qSm9pSEo2eVhYVU9rVGU0N0dtQktmVExXeXg4MjdheElRUW5fRHlSSDRSeVdGejZKUkJBNXo3eTlyZGRSTWJURHNjTDN4UlFzOGtkSFVQa2dQazVmUTg3ZldPUC1hVjY5Zk81WjgtZlAxS2diXzhFNURwd0dHbUpfRXlUUVI0NWFlYmxVVGliVXI1UQ?oc=5) |
| KXAN Austin | Mosquito pool in Buda tests positive for West Nile Virus | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMikwFBVV95cUxPMG9mRnlBSU1KLTEyUmlrRlhEMGZZUDVib215eFBTY2lZcHVUOEpOU3Mxb3RablNxMnZmYlNZb0V0aEVFcXNnVGlvaWJDcUhCRWNsdEJJVzZJZm5hbV9Wc0hZeFZjOWVUQzRUQjBaSHdkRzd5a29WT2RtU1FEYnY4VkNhc21zSTFnejFyZzlxZHYtcUXSAZgBQVVfeXFMUHN6Nm9EQWNwUHlhWWxFN2Naa2l5MExBZ1JnbG1TVENlTkV4SlllODZnakFFWm5DT1hNV2JpYVhmOHVGcXFRZ3NfTEpsYTkwQkZGQ1ExSTVsVlFGMVZjMzEtWEJDLUxmR3RLalJwTGotUXJFN3phdHBuTkxnSUhYLWl1eDBCZkY1aXBqeXZMWDRTdUdmQVJJVVk?oc=5) |
| WHIO TV | Mosquitoes at Montgomery County park test positive for West Nile Virus; Public Health to spray area | 2026-08-05 17:50 | [Source Link](https://news.google.com/rss/articles/CBMi4gFBVV95cUxOb0xPanE0R0s1OHZGQWRkT1NKSWtyVGtheUtLUmFYMDNzYWZyc2x0U3BKVmg2OEZYdGRFblFuaHVhVEc5MFFCdE5ITlZhRHhZR3U4ZEc1Vms3ekVaRmhGNHktY19KRkhDcVhOTjljcml4QTdObjMzRVFvaE14OFB1ZVJ0OGdvQUt3dllweURiQ0Y1dDNMMDNKaWZjRjJrMlVwaW1HZ2J4bi1uTzQxQjV1SUNVbG93bDUwS2RhMUdDOERMYWlvUENKaHV5U1luZmRmWXNJLW9mVmR6QnBjUEhrWURB0gH2AUFVX3lxTE8zM2E2amc5UjNGWVFPWjVBd1pjVDJ2aHh4eTg1NEQyQUh5RV9UWW5Lb0l4X2ZNdHV4RjdQSU96aGFjbzhGcHliajVLMTlYem1aWEJraFg3NHU0eWZhaWU4RkNfd0FkRnoxaUhCYmpTcG9) |
| KPBS | Why 4 West Nile virus cases in San Diego are more concerning than they appear | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMivgFBVV95cUxPR0ItajdtOFkzeV9ZM0xlajE4RDR5WmNWdlE4LXp4RzZsZF9GaUJmMXJ0bldWZ1ktMFFWT1pJRUVlaV9Vdi1WVjJSbE9BRjZ1WFJJTmgzYk0tOXloVl8zZ0Z0UEM4M1hVVV9JT0tFNkFPd2R2SVMtOFl1NmVwNGFvN25ia3cybmhvTnBtTGFXaGRuX2NEdmxkbGxfeHJLOGhlV0ZkT25ZY1Y2NllHcTRYamFPejMzSEdBQnB6VkNR?oc=5) |
| cbs8.com | San Diego County steps up mosquito treatment as West Nile activity continues | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMi1AFBVV95cUxPQjNycEx1ejhQS2JDQ2MwLTk5TkZEMlBrZ05rMl9Mc1dCaHFGN2FCbUo5UjRhY0p0NEJIa2x0eGhJMFlsNUVaSlhmUUlTZjNpZm5yRjR4RDFLOEpZNXBtTUM4X2Q0T05IZ0xfeGpoM1RHTjB0QWRmQ0ZRdnlCVFlPcG5hYlVqbjdKUFE5YjhJOTBnMHZpMzRJU3pCUTl2aXg2WXRrNWk2a1FwTG9fbHhFVm5XSzVEZWNJbk9kTXZIdkpodVU4SkQ3WlhicjRnRWEyY0t3cQ?oc=5) |
| fox5sandiego.com | 4 San Diego County residents test positive for West Nile Virus since June | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMiiwFBVV95cUxPcV9aZnBSclVnX0JIMDVJd0JMTmQtMUx2SW9Tak5JR1VpWmhtUnRfazdmTEFiQUhraDFkYmJKS0U0V2sxaDZjUGF2b0lqV09nSlNiVDRPUFBDdXY5aVktVjk0Wk1UT21GMzBRVDNUWkluMzRnWlNzd2Y5SE5xaUpxRWQyWVpWV19wSkow0gGQAUFVX3lxTE1SM0l0QVIzcGswT0xZbVdFbTN5LUhiVC1QbzRzbXRNRjcta3d1TVpUbmNhOG1OdXRmRG1hNGdTeVBZZHB4VGdiSExZMDhWLXd0eVR3YWVNUWRzYlh2V3JtcGtuaUZTWDRFaUVlVjdlQWdwc3RBMW8tMmotVmhjNnF6OG1qTWVvT2gyLVhOUVkyTA?oc=5) |
| Patch | Fourth Human West Nile Virus Case Reported In San Diego County | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMinwFBVV95cUxQYlRFdGRVY1JSdl9mVl9uV2lhYjlxbmx5RUlHcHJoR0JGakdYeWx3MGVPb21xckU1QndJZWgtV3RxWDFsMXEzNUxmdzJXYXJJcnp6VWhhazhHbzE3RHNnME50MXBPZkJxWkZ4MlhiM3gwVDRBc0twZDdrX2xwbEkyOWRoZ2dZUUJ6cVdJVy1ZVzMzMUZTRXdfVjJjMEZmbEXSAbQBQVVfeXFMTzVhb2VZNHFWbDlBYUY4dThhcnV0Q0gyZ1NJZDMzazVCdXhfaGg1MWdfXzV3U3E3cXJibV9SZXBNcW5UM2VJMXRqZUFGYWdPeXVaMVM2SFBRVV90b2hnWlhqZERBcGtZM28tX01fTnR4UFFZUU1vOGpTRXc3VkZ4R0R5WEFkOEFmNnEwRGljcWNDVDRnODRXcW96M2FIV3NKbE1oT3J0dGpyTzM0QkEyRzdEVzh) |
| yahoo.com | San Diego County steps up mosquito treatment as West Nile activity continues | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMimwFBVV95cUxONlZCTjkyNmphWkFHaG9yWXFwME15ZTVYZ1ludzBrQjd4b1BidnFBbndmYmdqQlpCTU1HOUREcTJCUUowZk01RTlwdHZobWowNTJsMXo2VU9fTmtyVjcteDVhdXRlRkdLeG4xQXFtdXJJT3hrTW52MFFOc1c4RmtlZ3JadnY5MEljaXdOaDNvc1JxSFRnVnRnQm5pVQ?oc=5) |
| NBC 7 San Diego | Fourth San Diego County resident tests positive for West Nile virus this summer | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMixgFBVV95cUxQQkdfWlNCRDBQdWJiWV9OaEY2LTNmMnE5QU1Udi1neHlFU0E4T0dIYTd2NUJuTFA5MUlYdHdVWC1OSmZEZzV1VTJEUHlxWURHVGZxNW5FTk5aXzRoU3Q1OTIwVUNtVFhrWWJPWDF1bmVtNk54YXJGSEFnTm9uSm5zRjlpN3d0VXowU1MtMWFEU3lXNmlkbUEzZTFMdlk0YjRDR0lSU3d6N3V6SWpNQ0pOXzJqSFh0bVhWWFFEZkp6ck05TElyNVHSAc4BQVVfeXFMTzEzRkZfNmh2MW1tc1RKVWN1aFUxUU1qQUg2MGtaaTVlcE55OURhNmdnNGw4WGZ1YlJHOHhZMWV5d3ZfbThfRXMxX0YyYmRrSTBOZHBEMXp6ZEtTWGJZanYzMDVGRFpsTUlzMVR2aHJ6OFZpdF9PdmM4c1BNNm95QTlwcFkzaGh2OVZnQVh) |
| San Diego County News Center | Fourth Case of Human West Nile Virus Has County Health Officials Urging Caution | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMiswFBVV95cUxNRXo4TW1sWXNkRm9wRjFYVWwyYXl4eE1CajJZTWZkd2NWQXN5Uk5kOTcwMFBJSnk5TUtyRU5ZYWQ1c1o2SHl3bW9RbjV1UDhrbnVKM0xia3kwZzNIcmU2M1dMV3VpZmVMUWQ1Tm95dDNVUVE1U3daX01QX0pNS1hFeWtZS2lEczh5RkdyRTlQamlwX200SS1WMXZCSE12LUVuWGN3OFN6cXJkeFF2Wk5fRWsyd9IBuAFBVV95cUxPTkhnRGsxa05WRlhENktPdEQwbUlQNk1NY19RSlR1UWRYcmtENGRTYW1VYUlya3JnWHhjVG9PRDNubW42V191ZnR0TUJBT1dja2d0Ujh2MTR5LTZEZkZ1VENjSUd4QW9mcmlvcVBraTgtYVNOQnRSWEFDMGpQa2JLU3cxY3JpWnVIZEJfRkhxMUpyT3BKRW90T1hlOXAyNnV) |
| cbs8.com | Fourth person tests positive for West Nile virus in San Diego County | 2026-08-05 13:10 | [Source Link](https://news.google.com/rss/articles/CBMi2gFBVV95cUxPUUE2ZzZqQWVRYTlSWWYzTjZFb1R3UUp4NFA4dTJQMGh1R0JNMEpKN0lYcFFBUTJ6Q0tzUzRnbjRwVlpuSWpmd0pWZjZJTUtPd1BUYmhsVGZRX2YxaWs0S19MZFpWQVlvNF9XN1FUc21sTHZ5WTdtNWFaWmU2N3Azd0ZJbEJGanhOWDB6OExieU03V0hUTHNxT3JIdXp1S2FWcE9DSDZkbWhoMU51d0JVcjNxSlpQdlFKY0ljN1hEem9PY1A2R2gzbjNDZUtlOXAxeUduUUM1NUpoUQ?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-08-05/fourth-person-tests-positive-for-west-nile-virus-in-san-diego-county*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*