So, this is something that I've been saying for a while now, based on an understanding that ticks attach to birds and birds fly over & land on other continents. Surely they will pick up ticks and other bugs while there, right? Yep!! They aren't admitting to much else yet, but they will!!
"Ticks can travel from Central and South America to the United States by hitching rides on migratory birds, a new study reveals.
Some of these ticks may be carrying infectious diseases with them, the researchers said. However, there is no evidence that any ticks from these regions have established permanent populations in the United States, according to the study published in the Oct. 2 issue of Applied and Environmental Microbiology.
Researchers examined thousands of migratory birds immediately after they arrived in the United States from Central or South America. The investigators found that 3 percent of the birds carried so-called neotropical ticks./www.nlm.nih.gov/medlineplus/news/fullstory_154948.html