I don’t know.
The 2005 patented mRNA technology was originally targeting vaccines for HIV and Hep C and another Corona Virus. Since 2005, they’ve never succeeded in making an mRNA vaccine that worked, that’s why there’s no Hep C or HIV vaccine. And yet, they claim to have done so for Covid in 6 months.
Pharm/bio companies like to repurpose their products, don't want to let their research investment go to waste. Sometimes the product can be effectively and safely repurposed, but not always.