Fever caused by Flu Shot?

11/3 (Tue): Melody and Ivan took both Seasonal Flu Shot and H1N1 Flu Shot (H1N1 Mist) at 7 pm.
11/6 (Fri): Melody started to have fever around 100 F -100.4F and the fever was gone in the evening (Melody didn't go to school today)
11/7 (Sat): Melody had fever again and up to 102.6F at night
11/8 (Sun): Melody's fever was completed gone, but Ivan started to have fever in the afternoon.
11/9 (Mon): Melody had little coughing and Ivan still had fever up to 103F at night. They both stayed home today.
11/10 (Tue): Melody went back to school and Ivan was still fighting with fever. Thank God that his fever went down to 100-100.3F.

Was the fever caused by flu shots? We don't know. Melody and Ivan started to have fever two days after shots, but usually people will have fever response in 24 hours after flu shot, so we're not sure if it was caused by flu shots or the viral fever.......But for sure next time we may not let them take nasual flu shot (H1N1 Mist).

P.S. After two kids recovering from fever, mommy started to have fever on Sat too...... Terrible virus!!