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.
Special free baggage regulations for Economy Class. On selected routes special free baggage allowances apply to Lufthansa Economy Class passengers. Children under two years of age, for whom no separate seat has been booked, are exempt from this regulation. From/to West- and Central Africa (1/2)