The invention relates to new derivatives of 2-amino-phenyl which are NO synthase inhibitors and can trap reactive oxygen species. The genetic risk attributable to LSAMP adds to known cardiovascular disease risk factors. The packet is routed or forwarded by a single port of a switching device in the nodes. Peptides comprising at least YTSF or YTSQ sequence for use in a vaccine or an immunogenic composition intended to control, prevent, diminish or treat HIV infections.