What is a toxic reaction to bee stings?

A toxic reaction can occur after numerous stings. The venom acts as a poison. The lethal limit for the number of stings a person can sustain varies with weight and health. An adult person of average weight and “good health” may be able to sustain 1,000 stings, while a child, weighing much less or an individual in “poor health” may only be able to sustain 200 to 300 stings.
– John Skinner, University of Tennessee