Exhibit 4.7

                   MANAGEMENT, ADVISORY AND SUPPORT AGREEMENT

     THIS MANAGEMENT,  ADVISORY AND SUPPORT  AGREEMENT  ("Agreement") is entered
into as of June  1,  2006,  by and  between  Cavit  Sciences,  Inc.,  a  Florida
corporation ("Cavit"),  and Hard to Treat Diseases,  Inc., a Florida corporation
("HTTD"). Cavit and HTTD have offices at 100 East Linton Boulevard, Suite 106 B,
Delray Beach, Florida 33483.

                                    RECITALS

A.   Cavit is a recently formed corporation created by HTTD as a subsidiary;


B.   HTTD is a seasoned corporation with a management team, business offices and
     support personnel; and

C.   Cavit  desires  to  contract  with HTTD for the  provision  of  management,
     advisory and support and HTTD desires to provide such management,  advisory
     and support to Cavit.

NOW,  THEREFORE,  in  consideration  of the premises and of the mutual  promises
herein, the parties covenant and agree as follows:

1.   Term. The term of this Agreement shall be for twelve (12) months  following
     the date hereof.  This Agreement may be extended for an additional  term of
     one or more years upon the mutual  written  agreement of the parties.  This
     Agreement may be terminated by either party at the end of the first six (6)
     months.

2.   Management,  Advisory  and  Support.  HTTD  shall  provide  management  and
     advisory  services to Cavit.  In addition,  HTTD shall  provide  Cavit with
     access to HTTD offices,  telecommunication equipment, incidental equipment,
     office supplies and furniture.

3.   Fees. HTTD shall be compensated for the management, advisory and support it
     provides to Cavit by a monthly fee of One Thousand Dollars  ($1,000.00) per
     month, beginning with the month of June 2006.

4.   Independent  Contractor Status.  Cavit and HTTD are independent  businesses
     and persons, and as such they shall remain  professionally and economically
     independent of each other.  Cavit and HTTD are not, and shall not be deemed
     to be,  joint  venturers,  partners,  employees  or agents  of each  other.
     Neither  party shall have any authority to bind the other without the other
     party's  express and prior written  consent,  and then only insofar as such
     authority is conferred by such express and prior written  consent.  Nothing
     in this Agreement,  whether  express or implied,  is intended to confer any
     rights or  remedies  on any person  other than the  parties to it and their
     respective successors and assigns.

5.   Severable Provisions.  The provisions of this Agreement are severable,  and
     if  any  one  or  more   provisions   are   determined   to  be  judicially
     unenforceable,  in  whole  or  in  part,  the  remaining  provisions  shall
     nevertheless be binding and enforceable.

6.   Notices.  Any notice or notices to be given under this  Agreement  shall be
     sent via certified mail to the address of the party set forth above.

7.   Governing Law. This Agreement shall be governed by the laws of the State of
     Florida.

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8.   Arbitration.  The parties hereto agree to submit any and all  controversies
     under this Agreement to binding arbitration before the American Arbitration
     Association  ("AAA") at a hearing or  hearings to be  conducted  in or near
     Delray Beach, Florida.

9.   Counterpart;  Facsimile.  This  Agreement  may be  executed  in one or more
     counterparts,  each of which shall be deemed an original,  but all of which
     together shall constitute one and the same  instrument.  The parties hereto
     may execute the original of this Agreement or facsimile  copies of same and
     the Agreement so executed shall be binding on the parties.

EXECUTED AS OF THE DAY AND YEAR FIRST ABOVE WRITTEN.

Cavit Sciences, Inc.


By: /s/ Colm J. King
   ---------------------------------
   Colm J. King
   Chief Executive Officer


Hard to Treat Diseases, Inc.


By: /s/ Colm J. King
   ---------------------------------
   Colm J. King
   Chief Executive Officer

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