Probability of bacteria in medicine for pregnant women causing this virus?

Knowledge, here are some more thoughts. FIRST medicines do NOT usually cause bacterial disease although some can weaken the body's immune system. Did the 8 Korean women all receive the same medicine? Were there any bacteria cultures positive for the same bacteria in lab growth? Were all the patients, except one, pregnant women? Did any men get the suspected medicine. Certainly public health officials need to be called in to evaluate the several possibilities.