Exhibit 32.1

                              CAVIT SCIENCES, INC.
                              A Florida Corporation

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In  connection  with  the  Annual  Report  of  Cavit  Sciences,  Inc.  (the
"registrant") on Form 10-K for the fiscal year ended December 31, 2007, as filed
with the Securities and Exchange  Commission on the date hereof (the  "Report"),
I, Colm J. King, President and Chief Executive Officer,  certify, pursuant to 18
U.S.C.  Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley
Act of 2002, that:

     (1)  The Report fully  complies with the  requirements  of section 13(a) or
          15(d) of the Securities Exchange Act of 1934; and

     (2)  The  information  contained  in the  Report  fairly  presents,  in all
          material respects,  the financial  condition and results of operations
          of the registrant.


Dated: April 17, 2008                      /s/ Colm J. King
                                           -------------------------------------
                                      By:  Colm J. King
                                      Its: President and Chief Executive Officer