Transcription factor binding
It must be widespread, limited in geological time, and distinctive.
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The answer to this question would be: <span>Nitazoxanide
</span><span>Nitazoxanide is a broad antiparasitic drug that can be used to treat infection of Giardia lamblia or Cryptosporidium parvum. It also a broad antiviral can be used for viral infection.
Another drug that can be used for Giardia infection would be Metronidazole.</span>