Briefly, the microfluidic device consisted of two layers of microchannels separated by a semipermeable membrane. and exhibits different antigenicity than BA.2 and BA.5. The BA.2.75 spike exhibits higher affinity to ACE2 and higher fusogenicity, and BA.2.75 is more pathogenic than BA.2 in hamsters. == Intro == Newly growing SARS-CoV-2 variants need to be cautiously and […]