The best Viking Age example is the two sided game board from the Gokstad ship (c. 900). This is clearly Nine Men's Morris with its three courts. There is also what is clearly a Nine Men's Morris board on slate found at Peel, on the Isle of Man. (There are photos of this on the World of the Vikings CD-ROM.).
Complications may include bleeding problems, testicular swelling, and inflammation of nerves. Infection during early pregnancy may result in a child born with congenital rubella syndrome (CRS) or miscarriage. Symptoms of CRS include problems with the eyes such as cataracts, ears such as deafness, heart, and brain. Problems are rare after the 20th week of pregnancy.
Although more investigations are needed, current research suggests that symptoms of Bartonella infection may include recurring fever, headaches, insomnia, joint and muscle pain, arthropathy, myalgia, neurologic dysfunction, and vasculitis.