Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Caesarian sections may increase asthma risk

Review hints that exposure to mum's microbes protects against asthma.

This is a preview of subscription content, access via your institution

Access options

Rent or buy this article

Get just this article for as long as you need it


Prices may be subject to local taxes which are calculated during checkout


  1. Thavagnanam, S . et al. Clin. Exp. Allergy doi: 10.1111/j.1365-2222.2007.02780.x (2007).

Download references


Related links

Related links

Related external links

National Heart Lung and Blood Institute: What is Asthma?

NIH Allergy Information on Medline

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Kaplan, M. Caesarian sections may increase asthma risk. Nature (2007).

Download citation

  • Published:

  • DOI:


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing