False positive Wassermann reaction associated with evidence of enterovirus infection

False positive Wassermann reaction associated with evidence of enterovirus infection.

A large proportion of high titre Coxsackie B5 complement-fixation tests was detected among sera giving false positive Wassermann reactions during 1969. Echo virus type 9 proved to be the prevailing enterovirus and is one of those which induces the formation of antibody to Coxsackie B5. One case of Echo virus type 9 meningitis is presented which produced a false positive Wassermann reaction and ...

Latent Syphilis and False-Positive Wassermann Reaction in the Tropics

In a previous communication (Greval, Sen Gupta and Das, 1938) it was shown that (?') latent syphilis was encountered in an unselected hospital population rather infrequently, (w) that many conditions other than syphilis were responsible for a positive Wassermann reaction, and that (in) the Wassermann-positive rate in an unselected Indian population was likely to be under 10.25 per cent rather t...

Biological false positive Wassermann reactions in Uganda.

In a country like Uganda where syphilis is common, yaws occurs, and many of the diseases known to cause false positive Wassermann reactions (such as malaria, leprosy, relapsing fever, smallpox vaccination, trypanosomiasis, lymphogranuloma venereum, and infectious hepatitis) exist, it seemed desirable to obtain some background information about the frequency of positive serological tests for syp...

Wassermann Reaction

construction of vector fields with positive lyapunov exponents

in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...