Article on the cerebral venous sinus thrombosis incidents:
Apparent rates of cerebral venous sinus thrombosis:
| Situation | Time frame | Apparent rate |
|---|---|---|
| General population | 1 year | 5 per million |
| J&J vaccine | weeks after vaccine? | 1 per million |
| AstraZeneca vaccine | weeks after vaccine? | 5 per million |
It has been claimed that the carrier adenovirus may be related to rogue antibodies against platelet factor 4:
Note that the J&J and AstraZeneca vaccines use different carrier adenoviruses.
Background information about cerebral venous sinus thrombosis: