By Centers for Disease Control Special to GUIDON When used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women. Use Environmental Protection Agency-registered insect repellents with one of the active ingredients below. — DEET — Picaridin (known as KBR 3023 and icaridin outside the US) — IR3535 —Oil of lemon … [Read more...] about Protecting against mosquitoes