An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Colmenares M, Kar S, Goldsmith-Pestana K, McMahon-Pratt D.Colmenares M, et al.Trans R Soc Trop Med Hyg. 2002 Apr;96 Suppl 1:S3-7. doi: 10.1016/s0035-9203(02)90044-1.Trans R Soc Trop Med Hyg. 2002.PMID: 12055848Review.