Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
IgE-Reactivity of ascariasis patients to Blomia tropicalis (Bt), Dermatophagoides pteronyssinus (Dp), Dermatophagoides farinae (Df) and Ascaris lumbricoides (Al) extracts. Black horizontal lines indicate the cut-off values for positive reactions obtained by computing the mean+SD of the IgE reactivity of the control groups.
