Plant exposures constitute the 4th most common call to poison informat
ion centers. Within the plant category, exposures to unidentified berr
ies are common and often create panic in the public and indecisiveness
by health professionals. Are exposures to unidentified berries associ
ated with morbidity and mortality? Can these berry exposures be manage
d at home or do they necessitate medical evaluation? The AAPCC Toxic E
xposure Surveillance System was queried to identify exposures with the
''unidentified berry'' code for a 10-y period. Data parameters includ
ed frequency, age, outcome, patient disposition, referral pattern, sym
ptom progression and therapeutic intervention. The data were analyzed
using descriptive statistics. Unidentified berry exposures included 11
,237 incidents, making it the 11th most common plant-related exposure.
Children < 6 y-of-age accounted for 88.5% of the exposures, and 88.5%
occurred during June-October. There were no fatalities, and morbidity
included 1 major outcome in an infant and 26 exposures with moderate
outcomes. In exposures with a known outcome, no effects (86.0%) and mi
nor effects (13.6%) accounted for 99.6% of exposures. When a patient w
as initially asymptomatic, 89.7% did not develop symptoms and 10.2% pr
ogressed to have minor symptoms, accounting for 99.9% of all exposures
. Poison centers referred 7.5% to a health care facility. There was no
apparent benefit conferred by decontamination therapy. Exposures to u
nidentified berries represent common inquiries to poison information c
enters. They are associated with low morbidity and no mortality. If no
initial symptoms are present, it is unlikely that the patient will de
velop clinically relevant effects.