JIHS Disease Surveillance (IDWR)#

RSSHub provides a route for the 感染症発生動向調査週報 (Infectious Disease Weekly Report, IDWR), published by Japan's JIHS (Japan Institute for Health Security) at id-info.jihs.go.jp. The route is categorized under the JapanGov namespace 1, which covers Japanese government (.go.jp) sources.

Route#

2

The :year parameter defaults to the current year if omitted 3. The route supports Radar auto-detection and is available in both Japanese (name: 感染症発生動向調査週報) and Chinese (name: 传染病发生动向调查周报) 4.

Implementation#

The handler lives at lib/routes/go/jihs/idwr.ts — the only file in the lib/routes/go/jihs/ directory. It:

1. Constructs a target URL under https://id-info.jihs.go.jp and fetches the page with ofetch 5
2. Parses <a class="sizeview"> anchor elements, extracting title, publication date (matching 〔YYYY年M月D日発行〕), and link URLs 6
3. Treats each linked file (typically a PDF) as an enclosure, setting enclosure_type from the file extension 7

⚠️ Known URL-Structure Issue (Open as of 2026-07-12)#

The 2026 IDWR pages moved to a new URL path, dropping the /jp/ segment:

The current code at line 16 still uses the old pattern, causing 404 Not Found errors for 2026 requests. The fix requires updating that line and the Radar source path at line 110. This is tracked in GitHub issue #22684 8.

This is a recurrence — an earlier domain migration (NIID → id-info.jihs.go.jp) had already broken the route once (issue #19272) 8.

Docs & References#

• Official RSSHub docs for this route
• Source implementation
• Namespace config (lib/routes/go/namespace.ts)
• GitHub issue #22684 — 2026 URL breakage 8