Table 4.

Changes of IgG and neutralizing antibody titres in sera from SARS‐CoV‐infected Macaca mulatta

Macaque identification No (see Table 1)	0*	5	10	15	20	30	40	50	60
2373	−	−†
1924	−	−†
1951	−	−	−†
883	−	−	−	1 : 40‡ (1 : 4)
227	−	−	1 : 10	1 : 160	1 : 160 (1 : 2)
1921	−	−	−	−	−	1 : 40 (1 : 4)
900	−	−	−	1 : 80	1 : 80	1 : 320	1 : 160	1 : 160	1 : 160 (1 : 64)
2372	−	−	1 : 40	1 : 320	1 : 320	1 : 320	1 : 160	1 : 160	1 : 160 (1 : 64)

^*Days after infection with SARS‐CoV.

^† Macaca mulatta were sacrificed on or before the tenth day.

^‡Sera were diluted from 1 : 10. Negative (−) = OD value < 0.16.

Antibody titres were determined on the days when the monkeys were sacrificed and are given in parentheses.

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