Table 1.

Mean duration and case fatality ratio by pathogen by World Bank classification

Pathogen	No. studies	Bacteria	Outbreak duration (months)	CFR%
		World Bank classification	Mean (95% CI)	Mean (95% CI)
Total all countries	6	MRSA	3.5 (2–8)	0 (0–10)
	6	Serratia marcescens	14.6 (8.9–20.4)	11 (4–19)
	2	Escherichia coli	7 (2.5–11.5)	8 (0–23)
	10	Klebsiella pneumoniae	6.5 (5.4–7.5)	49 (41–57)
	2	Acinetobacter baumanii	9 (6.8–11.2)	67 (59–75)
	4	Other	8.5 (3–11.5)	17 (5–26)
		World Bank classification
MRSA	6	High	3.5 (2–8)	0 (0–10)
		Upper–middle	NA	NA
		Lower–middle	NA	NA
		Low	NA	NA
S. marcescens	5	High	15.4 (9.3–21.5)	9 (1–17)
		Upper–middle	NA	NA
	1	Lower–middle	4	44
		Low	NA	NA
E. coli	1	High	7	7
		Upper–middle	NA	NA
	1	Lower–middle	10	100
		Low	NA	NA
K. pneumoniae	5	High	12.8 (10.9–14.7)	17 (4–29)
	1	Upper–middle	1	0
	3	Lower–middle	2.2 (0.9–3.6)	79 (64–87)
	1	Low	8	85
A. baumanii		High	NA	NA
	2	Upper–middle	9 (6.8–11.2)	67 (59–75)
		Lower–middle	NA	NA
		Low	NA	NA

CFR: case fatality ratio; MRSA: multi-resistant staphylococcus aureus; NA: not available.