Two countries re-infected with polio, as Nigerian state resumes vaccinations
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
The World Health Organization
2004-09-01
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| Series: | Bulletin of the World Health Organization |
| Online Access: | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862004000900023 |