Objective To prevent misdiagnoses of brucellosis and misjudgment of brucellosis outbreak through differential diagnosis between influenza and brucellosis of three new cases who were in the same work unit and underwent the longest latent period.Methods Contact history of the three new cases was investigated epidemiologically and physical examination and blood test were taken.Brucellosis antibodies of the cases and abortion cow were tested by serum tube agglutination test (SAT),and pathogen was isolated.The tonsilla and pharyngeal secretion substance of cases were collected for detection of influenza virus RNA by real-time PCR.Results The cases had contact history with brucellosis abortion cattle and/or the animal contaminated environment,and had a fever,fatigue and other symptoms.Total blood cell(WBC) was normal and proportion of lymphocyte was increased.The antibody titer in SAT test was 1:200(+++),but pathogen isolation was negative for all three cases.Brucellosis antibody of abortion cow was positive and antibody titer was 1:800 (++).The test of Bv RNA of influenza virus was positive in the three cases.Conclusions The three cases are brucellosis latent infection combined with influenza and we have excluded a misjudgment of pestilence of human brucellosis outbreak.

Objective To study GAP\|43mRNA expression during nerve injure and regeneration. Methods Rat sciatic nerve was crushed then, in situ hybridization technique was used to explore GAP\|43mRNA expressions in spinal cord and dorsal root ganglion (DRG). Results The neurons of spinal cord and DRG were detected to have GAP\|43 hybridization sinal by 2 days after sciatic nerve lesion. At later times(4,7 and 14 days postsurgery) the anterior horn motor neurons and DRG cells showed an increase in the number of GAP\|43mRNA positive neurons, followed by a significant rise in their content of GAP\|43mRNA. The number of GAP\|43mRNA positive neurons was decreased by 30 days postinjure, and was nearly nomal 60 days postinjure.Conclusion GAP\|43mRNA expression was increased during peripheral nerve injure and regeneration. The study showed that GAP\|43 may play a key role in nerve regeneration. [