incubation

As a first step, researchers collected eggs found in the wild and hatched them in incubation centres.

Listeria is unusually hard to trace after an outbreak because it has a long incubation period — the CDC says it can take up to 10 weeks for some people to develop symptoms.

The pair were married three years later, and Feminella launched his dating app First Round’s on Me nationwide in August after a four-year incubation period.

Environmental Protection Agency has also said that climate change increases the risk of exposure to West Nile virus, as warmer temperatures can accelerate mosquito development, biting rates and incubation of the disease within an insect.

New Jersey began trying to reverse the decline in the early 1980s by bringing in eagles from Canada, along with artificial incubation and fostering efforts, the department said.