Ann Clin Microbiol 2023;26:125-137. Performance evaluation of 4-day versus 5-day blood cultures using the BD BACTEC FX system
Table 3. Cumulative incidence of anaerobic and microaerophilic bacteria, aerobic Actinomycetes, fastidious bacteria and fungus by time-to-positivity
OrganismTotalCumulative incidence (%) of isolates by time-to-positivity
12 h24 h36 h48 h72 h96 h> 96 h
Anaerobes        
Bacteroides spp.25010 (40)24 (96)25 (100)   
Cutibacterium acnes13000003 (23)13 (100)
Clostridium spp.115 (45)9 (82)9 (82)10 (91)11 (100)  
Parvimonas micra3001 (33)2 (67)3 (100)  
Actinomyces spp.20001 (50)2 (100)  
Fusobacterium nucleatum2001 (50)1 (50)2 (100)  
Leptotrichia goodfellowii20002 (100)   
Prevotella spp.2000001 (50)2 (100)
Veillonella spp.2002 (100)
Bifidobacterium breve1000001 (100) 
Finegoldia magna1000001 (100) 
Fusobacterium periodonticum1001 (100)
Parabacteroides goldsteinii10000001 (100)
Peptoniphilus spp.10001 (100)  
Propionimicrobium lymphophilum100001 (100)  
Alistipes finegoldii10000001 (100)
Unknow anaerobic organism10000001 (100)
HACEK        
Aggregatibacter spp.200001 (50)2 (100) 
Microaerophilic bacteria        
Campylobacter helveticus100001 (100)
Campylobacter upsaliensis  
Fungus        
Candida spp.576 (11)13 (23)30 (53)33 (58)48 (84)54 (95)57 (100)
Candida albicans1001 (10)4 (40)4 (40)8 (80)9 (90)10 (100)
Candida glabrata271 (4)3 (11)8 (30)10 (37)20 (74)25 (93)27 (100)
Candida tropicalis113 (27)7 (64)9 (82)10 (91)11 (100)  
Candida parapsilosis81 (13)1 (13)8 (100)    
Candida krusei11 (100)  
Fusarium spp.10000001 (100)
Aerobic actinomycetes        
Mycobacterium fortuitum1000001 (100) 
Nocardia farcinica1000001 (100) 

Abbreviations: HACEK, Haemophilus spp., Aggregatibacter actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, Kingella spp.