s2 Flashcards
Somatic antigen present in?
Oa, ob, oc - paratyphoid fever
Od- Typhoid
Flagella antigen or H antigen present in?
Past / previous
Hm hb, hc paratyphoid
Hd-thyphoid
Salmonella antibody starts appearing in serum at the end of first week and rise sharply during the: week of endemic fever.
3rd week
In acute typhoid fever, what agglutins can usually be detected 6-8 days.
O agglutinins
How many days can o agglutinins be detected? The
6-8 days
How many days it agglutinins can be detected?
After 10-12 days
Typhoid or paratyphoid? Signs I symptoms are comparatively severe and debilitating.
Thyphoid
Typhoid or paratyphoid: A vaccine to 1 is available to protect against typhoid.
Typhoid
Signs and symptoms are not as severe and debilitating.
Paratyphoid fever
Typhoid or para typhoid! There is no mode of immunological prevention
Paratyphoid
Is a positive test result and if the positive reaction is observed with how many volume?
20 ul
Recommended obtaining quick approximate titres for antigen positive in slide screening test.
Side method
Recommended obtaining quick approximate titres for antigen positive in slide screening test.
Side method
Recommended obtaining quick approximate titres for antigen positive in slide screening test.
Side method
Indicates acute/ recent typhoid fever
Inc titer on OD Ag
Indicates acute/ recent paratyphoid infection
Inc titer on OA , OB and OC
Indicates previous/past infection typhoid with fever
Inc titer on HD Ag
Convalescent/ vaccination against typhoid fever
Inc liter on hd Ag
Indicates past infection of S. Paratyphi
Inc fifer on HA,HC , HB
Indicates missed infection
Inc liter on O and H Ag
Allows the diagnosis of rickettsiosis
Weil -felix Test
Several rickettsial such as Riscketssia prowazekki, Rickettsia moose to and R. Ricketssii ,posses antigens that cross react with antigens of OX strains of Proteus Vulgaris
Weil Felix Test
Antigens used for proteus vulgaris
Proteus 0X-2
Proteus ox-19
Antigens used for Proteus Mirabilis
Proteus ox-k
