Let’s keep things civil, and on topic

With contentious issues such as vaccines — and are any more contentious than vaccines? — passions sometimes  run high, and discussions sometimes get sidetracked. Our policy:

1. No offensive comments will be allowed.

2,  Comments should directly address the article at issue. When comments stray off-topic, the  tangents will be edited out. If the entire comment is off topic, it won’t appear.

3. Keep comments short and pithy. If you have several points to make, separate them into separate comments whenever possible, to eliminate confusion when others respond.