Complex sentence: The inclusion bodies of "Chlamydia trachomatis" were first described in 1942; the "Chlamydia trachomatis" agent was first cultured in the yolk sacs of eggs by Professor Tang Fei-fan et al in 1957.
Split into simpler sentences: The inclusion bodies of "Chlamydia trachomatis" were first described in 1942. C "hlamydia trachomatis" agent was first cultured in the yolk sacs of eggs by Professor Tang Fei-fan et al in 1957.