 | Micrograph prepared by Dr Hans Ackermann
 | Department of Microbiology Medical Faculty Laval University Quebec, Canada. |
Specimen stained with 2 % PTA .
The bar represents 100 nm.
Primary magnification 29,700 x Micrographs were taken with a Philips EM 300 electron microscope operated at 60 kV.
Micrographs were obtained after carbonate digestion; half digested bundle with 4 free nucleocapsids. |