"Wolbachia only lives inside insect cells. So, if an insect dies, it dies too," said Wolbito do Brasil production manager Antonio Brandao, saying he regards it as a safe method. "Wolbachia is present in more than 60% of insects in nature and ... for centuries we never had any interactions with humans."
As per Reuters
Seems Antonio Brandao is an insect, if we take his quote at face value.