These nanobodies have the potential to mitigate SARS‐CoV‐2 infection and alleviate COVID‐19 symptoms by blocking the interaction of viral spike protein with the angiotensin‐converting enzyme 2 (ACE2) expressed on the surface of human lung epithelial cells.[30] Because the use of a covalently linked bivalent nanobody or fusion with the Fc homodimerization fragment could enhance the nanobody–target interaction and virus neutralization capability,[28, 29] we asked whether chemical‐inducible dimerization of these nanobodies could exhibit similar boosting effects (Figure 4a). The gene discussed is ACE2; the disease is COVID-19.