title: Response to the letter to the editor.
authors.affiliation: Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
authors.forename: Lorena
authors.initials: L
authors.lastname: Mejía
authors.affiliation: Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
authors.forename: Diana
authors.initials: D
authors.lastname: Muñoz
authors.affiliation: Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Trueba
authors.affiliation: Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador.
authors.forename: Leopoldo
authors.initials: L
authors.lastname: Tinoco
authors.affiliation: Instituto de Microbiología, Universidad San Francisco de Quito, Quito, Ecuador. szapata@usfq.edu.ec.
authors.forename: Sonia
authors.initials: S
authors.lastname: Zapata