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Medical Definition of A' haemolysis
1. Haemolysis observed infrequently in blood agar cultures of occasional strains of streptococci; the zone of haemolysis about the colony is not as clear, or wide, or distinctly outlined as it is in b haemolysis; there are a few apparently intact erythrocytes throughout the zone, but they are more numerous in the immediate vicinity of the colony, and there is no discoloration as there is in a haemolysis; the unique feature is that the zone becomes wider, i.e., the process is stimulated, when the culture is incubated at refrigerator temperatures (not true for b haemolysis); some strains of streptococci that are a'-haemolytic on horse blood agar cause typical a haemolysis on rabbit blood agar. (05 Mar 2000)
Lexicographical Neighbors of A' Haemolysis
| 90th 91 92 93 94 95 95th 96 97 98 | 99 9th a A A'man a' haemolysis A-bomb A-DNA A-esotropia A-exotropia | A-E amputation a-factor a-form DNA a-good A-horizon A-H conduction time A-H interval A-K amputation A-list A-mode |
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