Pfizer Batch Codes and Toxicity Levels
By Craig Paardekooper

The codes for each Pfizer batch can be obtained from the VAERS database, and the batches ordering by the total
number of adverse reaction reports generated by each batch.
When this is done we obtain the output shown below.

Observation 1 – The EN6 SERIESA mathematically sequential series of batch codes strongly represented in toxicity range 2000-3000 x base toxicity

EN6198
EN6199EN6200EN6201
EN6202
EN6203
EN6204
EN6205
EN6206
EN6207
EN6208(Base toxicity is defined as – the toxicity of batches generating 1 adverse reaction report = the toxicity of 70% of allreported batches)

Scientist typically use the batch numbers to identify the which experimental conditions (dosages) are being applied
to human subjects, in order to monitor and evaluate the effects.
Sometimes this is done to establish the lethal dosage limit (LD50) of a new experimental drug.

HIGH TOXICITY WARNING
Vaccines possessing these codes may result in a HIGH risk of DEATH, DISABILITY or SERIOUS ILLNESS

Observation 2 – The ER87 SERIESA mathematically sequential series of batch
codes strongly represented in toxicity range
1500-2500 x base toxicity.

ER8727
ER8728
ER8729ER8730
ER8731
ER8732
ER8733
ER8734
ER8735
ER8736
ER8737
ER2613(Base toxicity is defined as – the toxicity ofbatches generating 1 adverse reaction report= the toxicity of 70% of all reported batches)

HIGH TOXICITY WARNING
Vaccines possessing these codes may result ina HIGH risk of DEATH, DISABILITY or SERIOUS
ILLNESSObservation 3 – The EL SERIESMathematically sequential series of batch codes
strongly represented in toxicity range 1500-2500 x
base toxicity.

EL3246EL3247EL3248EL3249EL1283
EL1284EL9261EL9262EL9264EL9269EL 0142EL3302EL8982(Base toxicity is defined as – the toxicity of batches
generating 1 adverse reaction report = the toxicity of70% of all reported batches)

HIGH TOXICITY WARNING
Vaccines possessing these codes may result in a HIGH
risk of DEATH, DISABILITY or SERIOUS ILLNESS

Observation 4 – the EW SERIESA mathematically sequential series of batch codes
strongly represented in toxicity range 1000-2000 x basetoxicity.
EW0150
EW0151
EW0153
EW0158EW0161
EW0162
EW0164
EW0167
EW0168EW0169EW0171
EW0173
EW0176
EW0177
EW0178EW0179
EW0180
EW0181
EW0182
EW0183
EW0185
EW0186
EW0187
EW0191
EW0196
EW0198HIGH TOXICITY WARNING
Vaccines possessing these codes may result in a HIGH
risk of DEATH, DISABILITY or SERIOUS ILLNESS

Observation 5 – the F SERIESMathematically sequential series of batch
codes strongly represented in toxicity range
100-1500 x base toxicityFA6780
FA7484
FA7485

FC3180
FC3181
FC3182
FC3183FD0809FD8448

FE 3590
FE3592

FF2587
FF2588
FF2589FF2590
FF2593
FF8839FG 3527
FH 8020
FK5127

HIGH TOXICITY WARNING
Vaccines possessing these codes may resultin a HIGH risk of DEATH, DISABILITY or
SERIOUS ILLNESS

Observation 6 – the 301 SERIESA mathematically sequential series of batch codes
strongly represented in toxicity range 100-750 x basetoxicity.

30130 BA
30135 BA
30145 BA
30155 BA
32030 BD

HIGH TOXICITY WARNING
Vaccines possessing these codes may result in a HIGH
risk of DEATH, DISABILITY or SERIOUS ILLNESSConclusions

Variations in Toxicity
Throughout this monograph, you have seen how batches vary considerably in their level of toxicity – evidenced by
the number of adverse reactions produced per batch (all batches are assumed to be equal in size)
Since all batches are supposed to contain the same ingredients, we can only conclude that the differences in toxicity
are due to variation of concentration of those ingredients.

Batches Labelled According to Toxicity
You have also seen how batches with similar levels of toxicity have batch codes that are part of the samemathematical or alpha-numeric sequence.
This show that batches with similar dosage concentrations were labelled in a similar way – so scientists could
monitor the effects of different concentrations.

It appears that adverse effects are not random, but are rather the product of dosage testing within various toxic
ranges, each denoted by a particular alphanumeric sequential code.