A population explosion of a particular pest. Often caused by an application of pesticides that destroys the pest¡¦s natural enemies.

Symptoms caused by HSV infection. P - R

a wake-up call to every one of us on the need to have a healthy body and good immune system to fight against infections

When the population of the gypsy moth caterpillars ranges between 620,000 and 6,200,000 per acre when at 4th instar larvae and is causing widespread, severe defoliation.

Symptoms caused by herpes simplex infection.

As pertains to genital herpes, the virus becomes active and produces visible symptoms, such as redness and sores.

a recurrence of a latent infection (e.g., a herpes simplex virus outbreak). Also refers to the widespread occurrence of a disease within a population.

A situation in which a virus infection spreads rapidly throughout a system.