One of the main features of acute herpetic gingivostomatitis is the ulcers are confined to the attached gingival and hard palate

One of the main features of acute herpetic gingivostomatitis is the ulcers are confined to the attached gingival and hard palate:
a. True.
b. False. ***
a primary infection is more severe, with associated lymphadenopathy, fever and malaise. Recurrent infections occur at various intervals (ranging from monthly in some individuals to seldom in others) and affect the non-movable intraoral tissues (the hard palate and attached gingival).