What are the examination items of typhus?

summary

The harm of typhus to patients can not be ignored, so for typhus this disease should be thoroughly examined, timely treatment, typhus patients do relevant examination, what are the typhus examination items? Next, I'd like to share my views with you.

What are the examination items of typhus?

Wai fi reaction: Wai fi reaction is also known as Proteus agglutination test. The antibody against Rickettsia typhus in the patient's serum can agglutinate with Proteus OXK antigen, providing basis for diagnosis. Only a few (30%) were positive at the end of the first week, 75% at the end of the second week, 90% at the third week, and the titer was 1 ∶ 160-1 ∶ 1280. It began to decrease in the 4th week and turned negative in the 8th to 9th week.

Complement binding test: the positive rate is high, the specificity is strong, and the continuous positive time is long, up to 5 years. The antigenicity of different strains of Rickettsia typhus may be quite different.

Dot enzyme immunoassay: various serotypes of Rickettsia typhi or some proteins were used as antigens and adsorbed on the nitrocellulose membrane for dot enzyme immunoassay (dot EIA) to detect the specific IgG and IgM antibodies of various serotypes in patients' serum. This method has high sensitivity and specificity, and can distinguish various serotypes.

matters needing attention

The transmission route should be cut off to prevent being bitten by Chigger mite larvae, and sitting and lying on the grass and drying clothes should be avoided in the disease season. In the field work activities in epidemic areas, the cuffs and trouser legs must be tied tightly, and insect repellents, such as diphenyl phthalate or benzyl benzoate, can be applied.