Diagnostic criteria for PANDAS include:
OCD and/or tic<unk> <unk>  onset (between three years and onset of puberty)
Abrupt onset and episodic course of symptoms
Temporal relation between GAS infection and onset and/or exacerbation
GAS infection is confirmed by:
Positive throat or skin culture or rapid antigen detection test for GAS at the beginning of a PANDAS exacerbation, or
Clinically significant rise in antistreptococcal antibody between the onset of symptoms and four to six weeks later
Neurologic abnormalities, such as motoric hyperactivity, choreiform movements, or tics during exacerbations
OCD and/or tic<unk> <unk>  onset (between three years and onset of puberty)
Abrupt onset and episodic course of symptoms
Temporal relation between GAS infection and onset and/or exacerbation
GAS infection is confirmed by:
Positive throat or skin culture or rapid antigen detection test for GAS at the beginning of a PANDAS exacerbation, or
Clinically significant rise in antistreptococcal antibody between the onset of symptoms and four to six weeks later
Neurologic abnormalities, such as motoric hyperactivity, choreiform movements, or tics during exacerbations
GAS infection is confirmed by:
Positive throat or skin culture or rapid antigen detection test for GAS at the beginning of a PANDAS exacerbation, or
Clinically significant rise in antistreptococcal antibody between the onset of symptoms and four to six weeks later
Positive throat or skin culture or rapid antigen detection test for GAS at the beginning of a PANDAS exacerbation, or
Clinically significant rise in antistreptococcal antibody between the onset of symptoms and four to six weeks later
Pediatric autoimmune neuropsychiatric disorder associated with group A streptococci
Tic disorder or OCD
CMV neurologic disease
Sydenham chorea 
Drug induced aseptic meningitis
AIDS fever of unknown origin
HAART-induced lactic acidosis
Multisystem inflammatory syndrome in children