The flu, like a cold, is a respiratory infection but is caused by an entirely different group of viruses - namely the influenza A, B and C viruses. Perhaps the best way to prevent the flu is to get an annual flu shot before the flu season hits.
I called Lufthansa, and they told me that there are Economy Plus seating sections on the Bangalore to Frankfurt and Frankfurt to Chicago legs. But, since I bought tickets through United, they told me I can't get any seat assignments until check-in in Bangalore unless I work with United.
On Delta's Boeing 747-400s that have been reconfigured, rows 22-26 are the Economy Comfort rows. These seats require an additional fee to book, though that fee is waived/reduced for elite members of Delta's frequent flyer program.n Delta's Boeing 747-400s that have been reconfigured, rows 22-26 are the Economy Comfort rows. These seats require an additional fee to book, though that fee is waived/reduced for elite members of Delta's frequent flyer program.