FREQUENCY OF EXTENSIVELY DRUG-RESISTANT TYPHOID FEVER AND ASSOCIATED FACTORS AMONG CHILDREN PRESENTING TO A TERTIARY CARE HOSPITAL IN KARACHI, PAKISTAN. Bioscience Insights, [S. l.], v. 3, n. 3, p. 1248–1258, 2026. Disponível em: https://biosciinsights.com/index.php/BI/article/view/334. Acesso em: 7 nov. 2026.