按照美国国立卫生研究院（NIH）的规定，有关人-灵长类动物嵌合体胚胎的实验无法得到他们的资金支持；2015 年，他们又宣布暂停资助人-非灵长类动物嵌合体胚胎的研究。
日本则相反，他们在 2019 年放开了管
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
%A1%BE%B6%C4%B3%A1%B9%A4%BE%DF%A1%BF%B0%D9%BC%D2%98%B7%C5%C6%D1%A5%40%31%33%37%31%30%30%37%39%36%38%38
