A continuing focus of yellow fever in the Apurimac River Valley, Ayacucho, Peru, and the first isolation of yellow fever virus in that country.

María Rubio Méndez, Charles H. Calisher, Helga Krüger, F. Sipan, S. Delgado Sanchez, John S. Lazuick

PubMed · 1984 · 13 citations · 0 references

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