General Knowledge · History of Science
दुनिया का पहला सफल टीका निम्नलिखित में से किस बीमारी के लिए विकसित किया गया था?
- 1चेचक (स्मॉलपॉक्स)✓
- 2इन्फ्लूएंजा
- 3रेबीज
- 4डिप्थीरिया
सही उत्तर देखें
चेचक (स्मॉलपॉक्स)
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