Here's one from Iraq: https://www.medrxiv.org/content/10.1101/2020.10.26.20219345v... ; I've seen one from Egypt too, and I know one in Israel is ongoing but partial results are already statistically singificant (but I can only find reports in Hebrew right now - if you can read hebrew you can google it yourself).
Here's an in-vitro study: https://www.sciencedirect.com/science/article/pii/S016635422...
Here's one from Iraq: https://www.medrxiv.org/content/10.1101/2020.10.26.20219345v... ; I've seen one from Egypt too, and I know one in Israel is ongoing but partial results are already statistically singificant (but I can only find reports in Hebrew right now - if you can read hebrew you can google it yourself).