Table 1(a):Clinicopathologic features of previously reported cases of H1N1 influenza-associated encephalopathy/encephalitis in adults.
Author
Sex
Age (years)
Interval ILIneurologic symptoms (days)
Neurologic Symptoms
CSF
Fugate et al. (15)
Male
40
30
Confusion
No pleocytosis Elevated protein level RT-PCR H1N1-ND
Akins et al.(16)
Male
20
6
Confusion, seizures
Pleocytosis Elevated protein level RT-PCR H1N1 negative
Chen et al. (17)
Male
40
2
Tremors, clumsiness, right hemiplegia
Pleocytosis Elevated protein level RT-PCR H1N1-ND
Ito et al. (18)
Male
26
Unknown
Memory disturbance, disorientation, drowsiness
Mild pleocytosis Normal protein level RT-PCR H1N1 negative
Gonzalez et al. (19)
Female
46
3
Confusion
No pleocytosis Normal protein level RT-PCR H1N1 negative
Tsai et al. (20)
Male
46
4
Acute delirium
No pleocytosis Normal protein level RT-PCR H1N1 negative