1 The primary cause of COPD is tobacco smoke (through tobacco use or second-hand smoke).  The disease now affects men and women almost equally, due in part to increased tobacco use among women in high-income countries.
Swarming is the process by which a new honey bee colony is formed when the queen bee leaves the colony with a large group of worker bees. In the prime swarm, about 60% of the worker bees leave the original hive location with the old queen. This swarm can contain thousands to tens of thousands of bees.
Such migrating swarms brought honey bees to Connecticut and Pennsylvania by the mid 1650s. Honey bees had swarmed their way into Michigan by 1776 and Missouri, Indiana, Iowa and Illinois by 1800. In the next 20 years or so, bees had made their way to Arkansas, Oklahoma and Texas, as well as Wisconsin.