I believe cigarette and cigar tobacco are different even as plant varieties. I think (I'm not sure by any means) that cigarettes and burley pipe tobacco share the same parent tobacco plant. Cigar tobacco, I believe, is usually made from one or more different tobacco plants selected over time specifically for use in cigar production. (I'm really weak with plant classification, maybe they're different cultivars or something, I'm not sure of the term -- but the difference would be like CT Broadleaf vs Burley for example.) Steve Saka wrote an article on Black Tobacco in Cigar Magazine about a year ago that should address this WAY better than I can. But the differences don't stop there. AFAIK, cigarette and light pipe tobacco are usually rapidly cured and don't undergo the same kind of lengthy fermentation and marrying processes that cigar tobacco does.
My guess is that your nephew accidently inhaled a bunch of cigar smoke. I don't try to inhale but I do breathe in quite a bit of "second hand" or sidestream smoke when I'm in an enclosed space so that ain't so good either.
My guess is that your nephew accidently inhaled a bunch of cigar smoke. I don't try to inhale but I do breathe in quite a bit of "second hand" or sidestream smoke when I'm in an enclosed space so that ain't so good either.