Table 1.

Comparison of cell populations in the bronchoalveolar lavage fluid of LTα−/− and LTα+/+ mice on day 2 and 4 following low-dose aerosol inoculation with type A F. tularensis.

Days post-inoculation	Mouse strain	Total cell count (× 105)(a)	Differential counts (%)
			Macrophages	Lymphocytes	Neutrophils
2	LTα−/−	2.91 ± 1.59	97.60 ± 0.89	2.00 ± 1.00	0.40 ± 0.55
	LTα+/+	1.96 ± 0.31	98.80 ± 0.84	0.40 ± 0.55	0.80 ± 0.84
4	LTα−/−	3.02 ± 0.76	95.20 ± 3.27	2.40 ± 1.52	2.40 ± 1.82
	LTα+/+	2.70 ± 0.55	94.80 ± 6.76	0.20 ± 0.45	5.00 ± 6.82

^(a) The total leukocyte counts are expressed as absolute numbers, and differential counts are expressed as percentages. All data are mean ± standard deviation (n = 5) in each group at each time point. No significant differences were observed between LTα−/− and LTα+/+ mice at any time point.