Author: Nelson, John B.
Title: THE ENHANCING EFFECT OF MURINE HEPATITIS VIRUS ON THE CEREBRAL ACTIVITY OF PLEUROPNEUMONIA-LIKE ORGANISMS IN MICE Document date: 1957_8_1
ID: vhfticne_26
Snippet: The P strain was obtained from Princeton mice infected by direct contact. A passage series with this strain was begun in 1950 and has been maintained to date. A culture of recent isolation from conjunctival washings (the 3rd subculture) and one that had been recultured after 79 transfers and then stored for 8 months at -20°C. were used. The B strain was obtained from a naturally infected mouse, one of a group sent to us for examination from the .....
Document: The P strain was obtained from Princeton mice infected by direct contact. A passage series with this strain was begun in 1950 and has been maintained to date. A culture of recent isolation from conjunctival washings (the 3rd subculture) and one that had been recultured after 79 transfers and then stored for 8 months at -20°C. were used. The B strain was obtained from a naturally infected mouse, one of a group sent to us for examination from the Brookhaven National Laboratory. The 2nd culture transfer was employed.
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