-
Cell wall protein of Streptococcus pyogenes crossreacts with human
A. synovial fluid
B. cardiac valves
C. myocardium
D. vascular intima
[#] -
In Widal test the significant titres for H agglutinins is
A. 1:50 or more
B. 1:100 ormore
C. 1:200 or more
D. 1:400 or more
[#] -
Salmonellae can also be killed by
A. pasteurisation
B. chlorination
C. boiling
D. all of these
[#] -
Traveller’s diarrhea is caused by
A. enteropathogenic Escherichia coli (EPEC)
B. entero invasive E. coli (EIEC)
C. entero toxigenic E. coli (ETEC)
D. entero haemorrhagic E. coli (EHEC)