As filed with the Securities and Exchange Commission on May 15, 2006.

                                                     Registration No. 33-65177

                                UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                     POST-EFFECTIVE AMENDMENT TO FORM S-8
                            REGISTRATION STATEMENT
                                    UNDER
                          THE SECURITIES ACT OF 1933

                   NOVARTIS VACCINES AND DIAGNOSTICS, INC.
            (Exact name of registrant as specified in its charter)

                                   Delaware
        (State or other jurisdiction of incorporation or organization)

                                  94-2754624
                     (I.R.S. Employer Identification No.)

                              4560 Horton Street
                             Emeryville, CA 94608
                                (510) 655-8730
 (Address, including zip code, and telephone number, including area code, of
                  registrant's principal executive offices)

                  VIAGENE, INC. EMPLOYEE STOCK PURCHASE PLAN
                             (Full Title of Plan)

                             Thomas Kendris, Esq.
                Vice President, General Counsel and Secretary
                   Novartis Vaccines and Diagnostics, Inc.
                              4560 Horton Street
                             Emeryville, CA 94608
                                (510) 655-8730
          (Name, address, including zip code, and telephone number,
                  including area code, of agent for service)












                         TERMINATION OF REGISTRATION

            This Post-Effective Amendment No. 1 relates to the Registration
Statement on Form S-8 (File No. 33-65177) filed on December 20, 1995,
pertaining to the Common Stock of the Registrant, formerly known as Chiron
Corporation, to be offered under the Viagene, Inc. Employee Stock Purchase
Plan.

            The undersigned Registrant hereby removes and withdraws from
registration all securities registered pursuant to this Registration
Statement that remain unissued.




                                  SIGNATURES

          Pursuant  to the  requirements  of the  Securities  Act of  1933,  the
registrant certifies that it has reasonable grounds to believe that it meets all
of  the   requirements  for  filing  on  Form  S-8  and  has  duly  caused  this
Post-Effective  Amendment  to the  registration  statement  to be  signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Emeryville,
County of Alameda, State of California on May 15, 2006.


                                    NOVARTIS VACCINES AND DIAGNOSTICS, INC.

                                    By: /s/ Thomas Kendris
                                       -----------------------------------------
                                    Name:  Thomas Kendris
                                    Title: Vice President and Secretary


          Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment to the registration statement has been signed by the
following persons in the capacities and on the dates indicated:


                                    By: /s/ Joerg Reinhardt
                                       -----------------------------------------
                                    Name:  Joerg Reinhardt
                                    Title: Director, President and Chief
                                           Executive Officer (Principal
                                           Executive Officer)
                                    Date:  May 15, 2006


                                    By: /s/ Reto Braendli
                                       -----------------------------------------
                                    Name:  Reto Braendli
                                    Title: Vice President and Chief
                                           Financial Officer (Principal
                                           Financial and Accounting Officer)
                                    Date:  May 15, 2006


                                    By: /s/ Raymund Breu
                                       -----------------------------------------
                                    Name:  Raymund Breu
                                    Title: Director
                                    Date:  May 15, 2006


                                    By: /s/ Paulo Costa
                                       -----------------------------------------
                                    Name:  Paulo Costa
                                    Title: Director
                                    Date:  May 15, 2006