LIVE POLIO IRUS VACCINES

Minnesota Studies With Oral Poliomyelitis Vaccine
165
VIRUS FED
PRIOR TO
STOOL
COLLECTION
None
Ad.
Ch.
In
LE GE ND
Type 2 _
Type I
Ad
Type 3
None
Ch
Ad
None
Ch
In
Ad 1
None
Ch
Additionol
Isolotion of Fed Virus
Type 2 Type I
8.5%
Type 2
Ch
I n / ////
m
41.0%
63.3%
Type I
Ad
Ch
In
0% 5% 10% 15% 20%
Percent
FIc. 2.
Percentages of poliovirus isolated from six stool specimens collected from
group A individuals (placebo group).
1.4% 9.2%
3.2% 54.7 %
0-0% 80.0%
Ad.-Specimens from 141 adults.
Ch.-Specimens from 95 children.
In.-Specimens from 30 infants.
Only 13 stool specimens were missing; maximum of 4 from adults, 2 from children, 1 from infants.
TABLE 2. IDENTITY OF THE 4 PLACEBO-FED INDIVIDUALS FROM WHOM TYPE 2 POLIOVIRUS WAS
ISOLATED AND THEIR TYPE 2 ANTIBODY TEST RESULTS
INDIVIDUAL IDENTITY
STOOL SPECIMEN DATA
TITER
TYPE 2 POLIOVIRus ANTIBODY
FAMILY NO.
AND
PERSON No.
SEX
AGE
No. OF
SALK
SHOTS
ORDER
No.
No. OF DAYS*
SINCE VIRUS
FEEDING
PRE-
POST
CONTROL
POST
FEEDING
4-3 Fe 34 mo. 2 2nd 14