But by looking at DNA from almost 170 samples of the bacterium, and using that to createa family tree, researchers found that it can indeed spread from person to person.
Mr East, a retired RAF Squadron Leader and chairman of the East Family History Society who lives in Hertfordshire, said he used a variety of internet tools, including websites and the 1901 and 1911 censuses, to createa Wolstencroft family tree and trace relatives.
Owners, Britta and Kent Lindvall invited designers and architects to createa series of unique tree houses that reflect -- in some cases literally -- the growing popularity of ecologically-themed holidays.