Overall, these are relatively minor compared with the book’s strengths in clarity, relevance, and practical orientation.
The query is in Spanish: "make review related to 'parasitosis+humana+botero+6ta+edicion+pdf+gratis+2021'". So, the user wants a review in Spanish about this book's 6th edition in PDF format, free as of 2021. Or maybe the review is about the availability of the PDF for free in 2021?