FORM 6-K

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                        Report of Foreign Private Issuer

                    Pursuant to Rule 13s - 16 or 15d - 16 of
                      the Securities Exchange Act of 1934

                         For the month of December, 2006


                                  Acambis plc
                (Translation of registrant's name into English)

                           Peterhouse Technology Park
                               100 Fulbourn Road
                               Cambridge CB1 9PT
                                    England

                    (address of principal executive offices)

    (Indicate by check mark whether the registrant files or will file annual
                 reports under cover of Form 20-F or Form 40-F

                         Forms 20-F X     Form 40-F

  Indicate by check mark whether the registrant by furnishing the information
     contained in this Form also thereby furnishing the information to the
                Commission pursuant to Rule 12g3-2(b) under the
                       Securities Exchange Act of 1934).

                              Yes       No X

 (if "Yes" is marked, indicate below the file number assigned to the registrant
                   in connection with Rule 12g3-2(b): 82- ).




Enclosure:

1.  Holding(s) in Company announcement made on 1 December 2006
2.  Total Voting Rights announcement made on 13 December 2006
3.  Holding(s) in Company announcement made on 18 December 2006



Enclosure No. 1

Holding in Company


Cambridge, UK and Cambridge, Massachusetts - 1 December 2006 - Acambis plc
("Acambis") (LSE: ACM, NASDAQ: ACAM) announces an interest in its shares by The
Goldman Sachs Group, Inc.


On 30 November 2006, Acambis received notification that, as of the close of
business on 28 November 2006, The Goldman Sachs Group, Inc., ("GS Inc") of 85
Broad Street, New York, NY 10004, USA, was interested in a total of 14,119,712
ordinary shares of 10p each, representing a 13.15% holding of Acambis' issued
share capital.


Of these 14,119,712 shares:


a) the interest in 477,615 shares arose from an interest held
by Goldman, Sachs & Co. ("GS&Co."), a direct subsidiary of GS Inc., acting as
custodian; these shares are, or will be, registered in the name of Goldman Sachs
Securities (Nominees), Limited ("GSSN");


b) the interest in 3,300 shares arose from an interest held by
GS&Co, a direct subsidiary of GS Inc, acting as a discretionary manager. These
shares are, or will be, registered in the name of GSSN;


c) the interest in 351,500 shares arose from an interest held
by GS&Co, acting as custodian of 175,750 American Depositary Receipts ("ADRs");
these ADRs are, or will be, held at The Depositary Trust Company, New York;


d) the interest in 13,287,297 shares arose from a beneficial
interest held by Goldman Sachs International, a direct subsidiary of GS Inc;
these shares are, or will be, registered at CREST in account CREPTEMP.



                                     -ends-


Enquiries:


Acambis plc

Elizabeth Brown, Company Secretary: Tel: +44 (0) 1223 275 300

Lyndsay Wright, VP, Communications and Investor Relations: Tel: +44 (0) 1223 275
300


About Acambis
Acambis is a leading biotechnology company targeting infectious diseases with
novel vaccines. Acambis' development-stage pipeline includes vaccines that could
either offer improvements over existing products or target unmet medical needs.
Its investigational vaccine against Japanese encephalitis, ChimeriVax-JE, which
is undergoing Phase 3 clinical testing, is intended to provide an "ideal"
vaccine to address the estimated 50,000 cases of this viral disease in Asia
every year. Acambis' proprietary ChimeriVax technology, developed in association
with St Louis University, has also been used to develop ChimeriVax-West Nile,
which is undergoing Phase 2 clinical testing, making it the most advanced
investigational vaccine against the West Nile virus. Acambis also has the only
vaccine in development against Clostridium difficile bacteria, a leading cause
of hospital-acquired infections. Recognised internationally as the leading
producer of smallpox vaccines, Acambis is developing an investigational smallpox
vaccine, ACAM2000, and is manufacturing emergency-use stockpiles of this
investigational vaccine for the US Government and other governments around the
world. It is also developing an attenuated smallpox vaccine, MVA3000, under
contracts with the US National Institutes of Health.


Acambis is based in Cambridge, UK and Cambridge, Massachusetts, US, and is
listed on the London Stock Exchange (ACM). Its shares are listed on NASDAQ
(ACAM) in the form of American Depositary Receipts. More information is
available at www.acambis.com.



"Safe Harbor" statement under the Private Securities Litigation Reform Act of
1995:

The statements in this news release that are not historical facts are
forward-looking statements that involve risks and uncertainties, including the
timing and results of clinical trials, product development, manufacturing and
commercialisation risks, the risks of satisfying the regulatory approval process
in a timely manner, the need for and the availability of additional capital. For
a discussion of these and other risks and uncertainties see "Risk management" in
the Company's 2005 Annual Report and "Risk factors" in its Form 20-F, in
addition to those detailed on the Company's website and in the Company's filings
made with the Securities and Exchange Commission from time to time. These
forward-looking statements are based on estimates and assumptions made by the
management of Acambis and are believed to be reasonable, though are inherently
uncertain and difficult to predict. Actual results or experience could differ
materially from the forward-looking statements.





Enclosure No. 2

Voting rights and capital

Cambridge, UK and Cambridge, Massachusetts - 13 December 2006 - Acambis plc
("Acambis") (LSE: ACM; NASDAQ: ACAM), in conformity with the Financial Services
Authority's ("FSA") Transparency Directive transitional provision 6, notifies
that Acambis' share capital consists of 107,374,227 ordinary 10p shares, each
share having equal voting rights.

This figure may be used by shareholders as the denominator for the calculations
by which they will determine if they are required to notify their interest in,
or a change to their interest in, Acambis under the FSA's Disclosure and
Transparency Rules.


                                     -ends-


Enquiries:

Acambis plc
Lyndsay Wright, VP, Communications and IR
Elizabeth Brown, Company Secretary
Tel: +44 (0 1223 275 300


About Acambis
Acambis is a leading biotechnology company targeting infectious diseases with
novel vaccines. Acambis' development-stage pipeline includes vaccines that could
either offer improvements over existing products or target unmet medical needs.
As well as ChimeriVax-JE, Acambis' proprietary ChimeriVax technology, developed
in association with St Louis University, has also been used to develop
ChimeriVax-West Nile, which is undergoing Phase 2 clinical testing, making it
the most advanced investigational vaccine against the West Nile virus. Acambis
also has the only vaccine in development against Clostridium difficile bacteria,
a leading cause of hospital-acquired infections. Recognised internationally as
the leading producer of smallpox vaccines, Acambis is developing an
investigational smallpox vaccine, ACAM2000, and is manufacturing emergency-use
stockpiles of this investigational vaccine for the US Government and other
governments around the world.

Acambis is based in Cambridge, UK and Cambridge, Massachusetts, US, and is
listed on the London Stock Exchange (ACM). Its shares are listed on NASDAQ
(ACAM) in the form of American Depositary Receipts. More information is
available at www.acambis.com.

"Safe Harbor" statement under the Private Securities Litigation Reform Act of
1995:

The statements in this news release that are not historical facts are
forward-looking statements that involve risks and uncertainties, including the
timing and results of clinical trials, product development, manufacturing and
commercialisation risks, the risks of satisfying the regulatory approval process
in a timely manner, the need for and the availability of additional capital. For
a discussion of these and other risks and uncertainties see "Risk management" in
the Company's 2005 Annual Report and "Risk factors" in its Form 20-F, in
addition to those detailed on the Company's website and in the Company's filings
made with the Securities and Exchange Commission from time to time. These
forward-looking statements are based on estimates and assumptions made by the
management of Acambis and are believed to be reasonable, though are inherently
uncertain and difficult to predict. Actual results or experience could differ
materially from the forward-looking statements.






Enclosure No. 3

Holding in Company


Cambridge, UK and Cambridge, Massachusetts - 18 December 2006 - Acambis plc
("Acambis") (LSE: ACM) announces an interest in its shares by The Goldman Sachs
Group, Inc.

On 15 December 2006, Acambis received notification that, as of the close of
business on 12 December 2006, The Goldman Sachs Group, Inc., ("GS Inc") of 85
Broad Street, New York, NY 10004, USA, was interested in a total of 15,270,515
ordinary shares of 10p each, representing a 14.22% holding of Acambis' issued
share capital.

Of these 15,270,515 shares:

a) the interest in 485,115 shares arose from an interest held
by Goldman, Sachs & Co. ("GS&Co."), a direct subsidiary of GS Inc., acting as
custodian; these shares are, or will be, registered in the name of Goldman Sachs
Securities (Nominees), Limited ("GSSN");


b) the interest in 200 shares arose from an interest held by GS
&Co, of 100 American Depositary Receipts ("ADRs");


c) the interest in 347,900 shares arose from an interest held
by GS&Co, acting as custodian of 173,950 ADRs; these ADRs are, or will be, held
at The Depositary Trust Company, New York;


d) the interest in 14,437,300 shares arose from a beneficial
interest held by Goldman Sachs International, a direct subsidiary of GS Inc;
these shares are, or will be, registered at CREST in account CREPTEMP.


                                     -ends-


Enquiries:


Acambis plc
Elizabeth Brown, Company Secretary: Tel: +44 (0) 1223 275 300
Lyndsay Wright, VP, Communications and Investor Relations: Tel: +44 (0) 1223 275
300

About Acambis
Acambis is a leading biotechnology company targeting infectious diseases with
novel vaccines. Acambis' development-stage pipeline includes vaccines that could
either offer improvements over existing products or target unmet medical needs.
As well as ChimeriVax-JE, Acambis' proprietary ChimeriVax technology, developed
in association with St Louis University, has also been used to develop
ChimeriVax-West Nile, which is undergoing Phase 2 clinical testing, making it
the most advanced investigational vaccine against the West Nile virus. Acambis
also has the only vaccine in development against Clostridium difficile bacteria,
a leading cause of hospital-acquired infections. Recognised internationally as
the leading producer of smallpox vaccines, Acambis is developing an
investigational smallpox vaccine, ACAM2000, and is manufacturing emergency-use
stockpiles of this investigational vaccine for the US Government and other
governments around the world.

Acambis is based in Cambridge, UK and Cambridge, Massachusetts, US, and is
listed on the London Stock Exchange (ACM). More information is available at
www.acambis.com.

"Safe Harbor" statement under the Private Securities Litigation Reform Act of
1995:
The statements in this news release that are not historical facts are
forward-looking statements that involve risks and uncertainties, including the
timing and results of clinical trials, product development, manufacturing and
commercialisation risks, the risks of satisfying the regulatory approval process
in a timely manner, the need for and the availability of additional capital. For
a discussion of these and other risks and uncertainties see "Risk management" in
the Company's 2005 Annual Report and "Risk factors" in its Form 20-F, in
addition to those detailed on the Company's website and in the Company's filings
made with the Securities and Exchange Commission from time to time. These
forward-looking statements are based on estimates and assumptions made by the
management of Acambis and are believed to be reasonable, though are inherently
uncertain and difficult to predict. Actual results or experience could differ
materially from the forward-looking statements.












                                      SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant Peptide Therapeutics Group has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.



Date: 29 December, 2006                      ACAMBIS PLC





                                        By:  /s/ Lyndsay Wright
                                             Name: Lyndsay Wright
                                             Title: VP, Communications and IR.