Mubarak, H.S. el

measles virus \khartoum sequence patient sample genotype study isolation level infection antibody measles virus khartoum rt-pcr strain wild-type measles viruses mv isolation mv infection clade diagnosis nucleotide throat virus isolation sudan mv-specific assay sudanese wild-type number serologically plasma disease measles cases el mubarak virology position n gene throat swabs table wild-type mv journal h gene laboratory dilution osterhau mubarak response material result nigeria vn antibody levels mv eradication program divergence 3 year period mv-specific igm antibodies presence analysis laboratory diagnosis clade b symptom sm 32 characterization hanse mv-specific igg sm 17 mutation mv cases reference truong vn antibodies blood region elisa signal university sequencing health plasma samples mv genomic rna