Rule 425
Sample & Assay Technologies
QIAGEN –
Digene:   Creating a Leader in MDx, June 4, 2007
-
1
-
QIAGEN & Digene Announce
Merger
The New Market and Technology Leader in
Molecular Diagnostics
Employee Meeting  Digene
Gaithersburg, June 4th 2007
June 4, 2007, 1:00am EST
Filed
by:
QIAGEN
N.V.
Pursuant
to
Rule
425
under
the
Securities
Act
of
1933
and
deemed
filed
pursuant
to
Rule
14d-2
under
the
Securities
Exchange
Act
of
1934
Subject
Company:
Digene
Corporation
Exchange
Act
File
No.
000-28194


Sample & Assay Technologies
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2
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QIAGEN/Digene  –
Creating a Leader in MDx
Creating a Global Leader in Molecular Diagnostics
.
QIAGEN and Digene announced yesterday
to combine the two companies
to create the market and technology leading company in
molecular diagnostics
.
The Boards of Directors of both companies
approved the transaction in which
QIAGEN is to acquire 100% of Digene’s
stock
.
This strategic transaction combines
QIAGEN’s
leading
portfolio
of
sample
&
assay
technologies
with Digene’s
leadership in HPV and cancer-targeted
molecular diagnostic testing
This creates a global leader with
over $350 million of molecular diagnostics revenue and
$700 million overall.


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3
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QIAGEN/Digene  –
Creating a Leader in MDx
Combined Revenue Distribution –
Highly Complementary
Based on Q1 2007
By Product Groups
By Geographic Regions
By Customer Groups
Europe
46%
North
America
39%
Asia
13%
North
America
85%
EU
12%
North
America
52%
EU
36%
Asia
9%
Consumables
89%
Consumables
92%
Consumables
90%
Instruments
10%
Instruments
8%
Instruments
10%
MDx
100%
MDx
48%
MDx
27%
Pharma
24%
Pharma
17%
AT
11%
AT
8%
Biomedical
18%
Research
20%
All figures are estimates
+
RoW
Research
27%


Sample & Assay Technologies
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4
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QIAGEN/Digene  –
Creating a Leader in MDx
0
50
100
150
200
250
2003
2004
2005
2006
2007E
0
5
10
15
20
25
30
35
40
45
Revenues
Operating income
QIAGEN and Digene at a Glance
Revenues excluding the synthetic DNA business unit, sold in Q2 2004
Market-
and technology leader in
Sample & Assay Technologies
Founded:
1984
Headquarters:
Hilden, Germany
Germantown, MD
Employees:
1,900
International subs:       29
Rev 2006 (US$ m)       466
Listing:
NASDAQ:  QGEN
Frankfurt: QIA
Absolute market leadership in HPV  MDx
testing, only FDA approved test
Founded:
1987
Headquarters:
Gaithersburg, MD
Employees:
570
International subs:       7
Rev 2006 (US$ m)       153
Listing:
NASDAQ:  DIGE
Digene figures converted to calendar year (CY)
0
50
100
150
200
250
300
350
400
450
500
550
2003
2004
2005
2006
2007E
0
20
40
60
80
100
120
140
160
Revenues
Operating income
Revenues CAGR
2003-2006  
15%
Revenues CAGR
2003-2006
32%


Sample & Assay Technologies
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5
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QIAGEN/Digene  –
Creating a Leader in MDx
Creating a Global Leader in Molecular Diagnostics
Highly Synergistic Capabilities and Assets
Sales (Q1*4)
512
210
Sales in MDx
(approx)
154
210
Sales strength
Global
North America
Sales force size in MDx
150
120
Sales force target in MDx
Clinical Laboratories
Clinical Laboratories,
Physicians
Assay portolio
Broad: 120 tests: virology,
microbiology, genetic,
pharmacogenetic
HPV
Technology portfolio
Strong -
sample and assay
technologies
HC2
Operations
US, D, CH, CN
US
Employees
1990
570


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6
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QIAGEN/Digene  –
Creating a Leader in MDx
Creating a Global Leader in Molecular Diagnostics
Who
is
QIAGEN?
What
is
our
strategy?
What
do we
do in Diagnostics?


Sample & Assay Technologies
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QIAGEN/Digene  –
Creating a Leader in MDx
2.000 QIAGEN Employees in 23 Countries


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8
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QIAGEN/Digene  –
Creating a Leader in MDx
Global Set-up
With
Three
Headquarters
In Major Markets
Maryland
Shanghai/Shenzen
Düsseldorf
Switzerland
=   Automation Center of Excellence
Hamburg
=   Assay Center of Excellence
Valencia
(1)  
=   Customer
satisfaction
center
Singapore
=   Customer
satisfaction
center
Shenzen
=   Certified
Production
(2)
23 Subs
=   Direct
sales
and marketing
(1) California
(2) Certified
by
the
chinese
regulatory
authorities
SDA
for
production
of
diagnostic
products


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9
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QIAGEN/Digene  –
Creating a Leader in MDx
USA: Country
with
Biggest
Sales Organization
Number
of Employees
in Sales: 770
Direct Sales
Australia
Canada
France
Germany
Italy
Japan
Switzerland
UK
USA
Netherlands
Belgium
China
Norway
Austria
Sweden
Malaysia
Denmark
Finland
Singapore
Korea
Turkey
Luxemborg
Hong
Kong
Focus 2006: Asia and especially China   
Focus 2007: South America, South Africa and Eastern Europe


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QIAGEN/Digene  –
Creating a Leader in MDx
What
is
important
to us?
3i‘s:    Identity
-
Inspire
-
Impact
Identity
Culture
nspire
Leadership
I
D
E
N
T
I
T
Y
D
E
N
Y
I
mpact
Management
T
I
T
1.
Create and take ownership
2.
Courage
3.
Lead, motivate and empower
4.
Be a role model
5.
Communicate
1.
Act with Passion
2.
Value Integrity
3.
Improve Continuously
4.
Create Value
5.
Strive for Excellence
1.
Transparency
2.
Delegate
3.
Set up the right priorities
4.
Decide, execute and monitor!
5.
Act as entrepreneurs


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QIAGEN/Digene  –
Creating a Leader in MDx
What
Is
Important
To Us?
Our
Culture
1. Act with Passion:
We act with passion engagement and enthusiasm
2. Value Integrity:
We are committed to integrity and respect for our customers, colleagues, partners
and shareholders
3. Improve Continuously:
We
continually
improve
in
order
to
drive
breakthroughs
in
health
care
and
sciences
4. Create Value
We use our global reach, our creativity, innovation and scientific excellence to
exceed our and our customer’s expectations and  thereby create value
5. Strive for Excellence:
We seek to attract exceptional people whose individual strength and skills are the
basis for excellent teams. We provide them with opportunities for personal and
professional growth
IDENTITY –
Our DNA
Our leadership reflects our commitment to our identity
Identity
Culture


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QIAGEN/Digene  –
Creating a Leader in MDx
Very
High Committment
to our
Employees
.
Learning organization   -
“Investing in you”
program
Basic and advanced trainings
Leadership programs
Management campus and QIAGEN MBA
.
International careers
Working in global teams
Short-
and mid-term
Expatriates program
.
Families and social activities
Sabatical
programs
Kindergarten
Get-to-gethers
.
Competitive compensation
All employees are shareholder


Sample & Assay Technologies
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13
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QIAGEN/Digene  –
Creating a Leader in MDx
Creating a Global Leader in Molecular Diagnostics
Who
is
QIAGEN?
What
is
our
strategy?
What
do we
do in Diagnostics?


Sample & Assay Technologies
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QIAGEN/Digene  –
Creating a Leader in MDx
Providing Sample Preparation & Assay Technologies


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QIAGEN/Digene  –
Creating a Leader in MDx
Mission: Leader in Sample and Assay Technologies
QIAGEN 2007
SAMPLE
TECHNOLOGIES
ASSAY
TECHNOLOGIES
.
Market and innovation leadership
Sample technologies
Assay technologies
.
Strong base in Academic Research
Setting standards
Source of new innovation
.
Focus area addresses rapid growth markets
Molecular diagnostics
Applied Testing
Pharma


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QIAGEN/Digene  –
Creating a Leader in MDx
SAMPLE
TECHNOLOGIES
ASSAY
TECHNOLOGIES
Sample collection
Sample stabilization
Sample transport
Sample disruption
Targeted
lysis
Target capture
Sample purification
Inhibitor
removal/inactivation
Enrichment/deletion
of target
Sample prep
for
crystallography
Sample prep
for
MALDI mass
spec
Nucleic
acid
denaturation
Natural
target
amplification
In vitro
target
amplification
Whole
genome
amplification
MDA
Methylation/Epigenetics
Quantitation
methods
Separation of haploids
Quality
control
methods
etc.
Enzyme technologies
Chemical enhancements
Formulation
Enzyme activation/inhibition
Endpoint
PCR
Real-time
PCR
Mulitplex
QIA-Plex
Fast-PCR
Isothermal
amplification
technologies
Assay design
technologies
Primer selection
Probe selection
RNAi
assays
Transfection
Rolling Circle Amplification
RCAT
Signal amplification
Luminex
Assay acceleration
chemistries
etc.
General and Supporting
Technologies
Instrumentation
Software
Plastic
Manufacturing
technologies
Packaging
technologies
Microfluidic
technologies
etc.
IP (12/05): 409
issued, 321 pending patents >500 under license
QIAGEN Technology and Innovation
Sample
Assay
Technologies


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QIAGEN/Digene  –
Creating a Leader in MDx
Disseminating Technologies Into Four Markets
Product and Technology Continuum
Academia
Life Science
Research
Applied
Testing
Molecular
Diagnostics
Pharma
Research &
Development
Sample
Assay
SAMPLE
Technologies
ASSAY
Techologies


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QIAGEN/Digene  –
Creating a Leader in MDx
Bringing
Full Power To Our
Customers
Globally aligned Sales and Marketing
Customer focused   –
scaleable   –
critical mass 
One core = multiple channels
We
are
Life Sciences
Sales
Pharma
Key Account
Manager
Applied
Testing
Sales
Developer
MDx
Sales
SAMPLE
TECHNOLOGIES
ASSAY
TECHNOLOGIES
Diagnostic
Pharma
Biotech
Academia
Veterinary
Forensics
Food
Diagnostics
Sales
Specialists
AT
Sales
Developers
Pharma
KAMs
Life
Sciences
Sales
Life Sciences
Marketing
Manager
Pharma
Marketing
Manager
Applied Testing
Marketing
Manager
Diagnostic
Marketing
Manager
Customer
Sales
force
Marketing
force
Sample
Assay


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QIAGEN/Digene  –
Creating a Leader in MDx
MDx
And Applied
Testing
Account
For 35%
Revenue
breakdown
for
segments
Focus provides strength -
new markets drive growth
.
Focused core competency:
Sample and assay technologies
.
Four Markets:
Life Sciences Academia
Pharma Research & Development
Applied Testing
Forensics
Veterinary
Other
Molecular Diagnostics
SAMPLE
TECHNOLOGIES
ASSAY
TECHNOLOGIES
Sample
Assay


Sample & Assay Technologies
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20
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QIAGEN/Digene  –
Creating a Leader in MDx
Creating a Global Leader in Molecular Diagnostics
Who
is
QIAGEN?
What
is
our
strategy?
What
do we
do in Diagnostics?


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21
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QIAGEN/Digene  –
Creating a Leader in MDx
Molecular Diagnostics Growth Strategy
Multiple, Synergistic Channels –
Focused Direct Sales Resources
Direct sales
OEM development
OEM sales
.
Direct Sales
Growing direct sales force > 150 -
160
(1)
Focus on pathogens
Market leader in developing countries
China –
strong #2
.
OEM Products
Integrated solutions, CE and FDA
Assays, preanalytical, automation
> 15 Partners
Developing solutions for partners
(1) NA 23, EU 28, Rest Asia
Sample
Assay
MDx


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QIAGEN/Digene  –
Creating a Leader in MDx
QIAGEN Has Developed More Than 30 PCR Assays
Cytomegalovirus
Dengue virus
Epstein-Barr virus
Enterovirus
Hepatitis A virus
Hepatitis B virus
Human immunodefienciy
virus-1
Herpex
simplex virus
Influenzavirus
Influenzavirus
H5 (Avian flu)
Orthopoxvirus
Parvovirus B19
SARS-Coronavirus
Varicella
Zoster virus
West Nile virus
Bacillus antrhacis
Borrelia
spec.
Campylobacter spec
Chlamydia trachomatis
Listeria
monocytogeneses
Mycobacterium paratuberculosis
Mycobacterium tub. diff.
Mycobacterium
Mycoplaxma
pneumoniae
Salmonella spec.
Viruses
Bacteria
Parasites
Pharmacogenetics
DPD PCR kit
MTHFR PCR kit
TPMT PCR kit
Plasmodium spec
Representative but not complete list
Strength:
Sensitivity
and
Specificity
Sample
Assay
MDx


Sample & Assay Technologies
QIAGEN –
Digene:   Creating a Leader in MDx, June 4, 2007
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23
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QIAplex: Novel and Innovative Multiplex Technology
Sample
Assay
MDx
Syndrome
“Patient
Presentation”
Selected
qPCR
Test
Confirmed
Pathogen ID
Potential
Pathogens
hMPV
hMPV
Selection
of test for
one potential
pathogen
QIAplex
Panel
SARS
Avian
Flu
RSVA
RSVB
hMPV
PIVI
PIVII
Ent
Rhino
Coxsac
kie
SARS
Avian Flu
RSVA
RSVB
hMPV
PIVI
PIVII
Ent
Rhino
Coxsackie
Multiplexing:
Screening Technology
qPCR:
High resolution confirmation/quantification


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QIAGEN/Digene  –
Creating a Leader in MDx
Tangible Opportunities for Future Growth Synergies
Significant Growth Synergies
Exciting near-term product synergies:
Multiplexing technologies for future genotyping
application
Sample preparation
Next-generation assay technologies
Assay breadth in woman’s health
Exciting other synergies include:
QIAGEN is key supplier to vaccine developers
Manufacturing capacity
Channel lends itself to many future assay
opportunities
FastHPV
platform in developing countries,
QIAGEN has channel
Next generation instrumentation
And many more to come…


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QIAGEN/Digene  –
Creating a Leader in MDx
QIAGEN and Digene
15 year partnership in Molecular Diagnostics
>15 year partnership between QIAGEN and Digene
Digene products leverage QIAGEN sample and
assay technologies
Example: RapidCapture
system
Core platform of Digene
FDA approved solution, used in HPV testing
Digene sole marketer
Next generation platform development programs
Partnership –
Similar cultures –
Focus -
Excellence


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QIAGEN/Digene  –
Creating a Leader in MDx
QIAGEN and Digene  -
Direct Neighbors
Germantown and Gaithersburg MD
Companies are 5 minutes apart (2.8 miles)


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QIAGEN/Digene  –
Creating a Leader in MDx
The Combination Creates Real Value
For All
Market and technology leader in molecular diagnostics*)
over $350 million of molecular diagnostics revenue
Targeting > $800 million in total revenues in 2008
Unique technology and product portfolio
Fastest growing product portfolio; Most complete
technology portfolio
Absolute leader in key >$1 billion HPV segment
Most powerful sales and marketing channel to realize technology
potential
Over 300 professionals in MDx
marketing and sales
Over 1000 overall sales and marketing professionals
Excellent basis for future expansion and growth
Truly global sales and marketing presence
Leading technologies and R&D
World class capabilities and organization to ensure success
Compelling financial profile and value creation opportunity
Enhanced growth profile and combined profitability
QIAGEN’s Breadth and Platforms     +    Digene’s
Content
*) Ex blood banks and viral load
VAL
UE


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28
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QIAGEN/Digene  –
Creating a Leader in MDx
The Combination Accelerates
QIAGEN’s Molecular Strategy
Digene’s
highly
focused
strategy
in
MDx
is
a
unique
fit
with
QIAGEN
QIAGEN’s strategy: leadership in “Sample & Assay Technologies”
in research, pharma, applied testing and MDx
Same target customers in MDx
Superb brands and reputations
HPV
testing
is
fastest
growing,
large
segment
in
MDx
with
over
$1
billion
market potential
Digene’s
strong IP positions in HPV –
over 70 subtypes
HPV bridges QIAGEN’s virology leadership into emerging,
fast growing oncology segment
Important HPV assay creates unique value for QIAGEN’s
platforms and assay breadth
.
Leading regulatory expertise –
only FDA approved test for HPV
Great fit with QIAGEN’s emerging pipeline
.
Enhanced growth profile and combined profitability leads to    
strong value creation
QIAGEN’s Breadth and Platforms     +    Digene’s
Content


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29
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QIAGEN/Digene  –
Creating a Leader in MDx
The Combination Accelerates
Digene’s
Development Goals
QIAGEN’s unparalleled sample and assay technology breadth
creates opportunities for future:
Adds key assay technologies such as multiplexing (QIAplex),
PCR, isothermal technologies
Adds key sample technologies such as DNA processing from
cervical swabs
QIAGEN’s broad assay portfolio offers new value for Digene’s
customers and
Next generation platform programs
QIAGEN’s global sales strength accelerates rapid and global rollout
Digene can take advantage of QIAGEN’s operations and infrastructure
which are needed for next phase of growth
QIAGEN’s Breadth and Platforms  +   Digene’s
Content


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30
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QIAGEN/Digene  –
Creating a Leader in MDx
World-Class Capabilities & Organization Ensure Success
Great breadth and depth of management team
Strong leaders from both companies
Leading expertise in molecular diagnostics and life
sciences
Strong foundation for collaboration built upon 15-year
partnership
Similar cultures and strong working relationship
Strong synergies –
growth allows retention of talent base
Integration plan well-developed
12 month process, clear timelines
Mirrored teams
Being neighbors a big advantage
Maryland: headquarters of MDx
business
QIAGEN has proven track record in very successfully
integrating –
12 companies in last 3 years.
We are
Huge Growth Potential -
Increasing Awareness


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31
-
For Internal Use Only
Four Phases to an effective Integration of Digene
Phase 0
Pre-Process
planning
Phase 2
Detailed planning &
decision making
Phase 3
Implementation &
execution
Phase 1
Issue identification
and action planning
Appoint and launch
integration teams
Communicate
Stabilize the business
Establish resource
baselines for both
companies
Identify key integration
issues and areas for
synergy realization
Communication
Identify integration
opportunities
Develop/decide on future
business structure
Validate plans in detail
Initiate execution of short
term actions
Return first units to
“business-as-usual”
Finalize Budget 2008
Communicate
Resolve open issues
Implementing decisions
Monitor target achievement
Manage as single company
Communicate
Define integration process
and timeline
Define integration approach
& responsibilities
Plan, plan, plan
Agree on integration
resources, project teams,
charter & external support
Develop organizational and
core operating model
Determine targets
Communication
“Pre-closing”
“Plan
Budget 2008”
"Achievements"
“Pre-annoucement/
Pre-closing”
Day of public
announcement
Ca. September 2007
December
2007
June
2008


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QIAGEN/Digene  –
Creating a Leader in MDx
Integration should be accomplished in 6 –
12 months
10
20
30
40
50
10
20
30
40
50
Load dependent
on requirements
Handover
Resources
FTE
Integration
Accomplished
Line function
Take over responsibilities
Jul
Jun
May
Mar
Apr
Jan
Feb
May
Jun
Jul
Oct
Nov
Aug
Sep
Dec
Aug
Sep
Apr
Line function responsible
Integration Project
Functional project
In transition
Announcement
3. June
Closing
Announce-
ment
Pre-
Planing
Closing
New
Budget 2008
Pre-
Closing
Post-
Closing
Implementation


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QIAGEN/Digene  –
Creating a Leader in MDx
Project Structure
for
Integration
Special Projects
Functional Projects
Business Projects
Responsible for the bulk of  
the integration
Made up from representatives
of the different functions of
both companies
Develop guide-lines to ensure
consistency around the world
Responsible for planning and
tracking the overall process
Help to identify and resolve
emerging issues
Responsible for leading the
integration process
Divestments
&
Acquisition
New mission
&
Steering
principles
Locations
/ Property
Brand management
HR
IT
Manufacturing
R&D
Regulatory
Administration
Marketing Asia
Marketing Europe
Marketing USA,
Americas
Global Product
Management
Distributor
Sales Europe
Sales Asia
Sales USA,
Americas
Integration office
Communication
.
Doug
Liu
Joe
Slattery
Doug White            Thomas Schweins
Project Team
Steering
Committee
Peer Schatz      Daryl Faulkner


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QIAGEN/Digene  –
Creating a Leader in MDx
Doug Liu –
VP Global Operations
QIAGEN
Douglas Liu
VP Global Operations
Doug Liu joined
QIAGEN in 2005
MBA from
Boston University
Science degree
from
the
University of Illinois
Multifunctional
background
in diagnostic
Industry
Operations
Strategic
planning
and
R&D
.
20 years
track
record
of success
in Molecular diagnostics
Bayer Operation Head
-
Nucleic
Acid
Diagnostics
Bayer Strategic
Planning and Consulting
Abbott Diagnostics
Chiron
Diagnostics


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35
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QIAGEN/Digene  –
Creating a Leader in MDx
Doug White –
SVP Sales & Marketing  –
Digene
Douglas White
SVP Sales & Marketing
Americas
and Asia Pacific
.
Doug White joined
Digene in 2003
Started
as VP Sales & Marketing North America
Oversees
commercial
operations
incl. Sales,
Marketing Service and Support
Americas
and Asia Pacific
.
20 years
of sales
& marketing
experience
in health
care
.
10 years
track
record
of success
in Molecular diagnostics
SVP Global Marketing at Roche Molecular Systems
VP Sales & Marketing at Bayer
Vice
President
of US Marketing at Chiron
Abbott Diagnostics


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36
-
QIAGEN/Digene  –
Creating a Leader in MDx
Joseph
P.
Slattery
Chief
Financial Officer
and
Senior Vice
President
.
Joe Slattery joined
Digene in 1996
Corporation’s
finance, accounting,
investor
relations, treasury, information
systems
program
management
operations
Mr. Slattery was appointed
Chief
Financial Officer
Oct
2006.
.
Prior to Digene, Joe worked
in public
accounting
KPMG
Peat
Marwick
Ernst & Young LLP
.
He received
a B.S. in accounting
from
Bentley College         
and is
a certified
public
accountant.
Joe Slattery   –
Chief
Financial Officer
Digene


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37
-
QIAGEN/Digene  –
Creating a Leader in MDx
Thomas Schweins
VP Marketing & Strategy
Thomas Schweins  –
VP Marketing & Strategy
QIAGEN
.
Thomas Schweins joined
QIAGEN in 2004
Biochemistry, University Hannover
Business Adminstration, USC Los Angeles
PhD, Max Planck Institute, Heidelberg
.
Multifunctional
background
in Life Science Industry
Strategy
and Strategic
Planning
Marketing
R&D
Post-Merger-Integration
.
15 years
track
record
of success
in Life Sciences
Senior Manager Boston Consulting
Group
Senior Project Manager Aventis
Technology & Business Dev
Manager Hoechst


Sample & Assay Technologies
QIAGEN –
Digene:   Creating a Leader in MDx, June 4, 2007
-
38
-
Questions and Answers
If
you
have
further
questions:
Call
+240-686 7362
E-mail
Merger@qiagen.com


Disclaimer Regarding Forward-Looking Statements

Information set forth in this communication contains forward-looking statements, which involve a number of risks and uncertainties. Such forward-looking statements include, but are not limited to, statements about the anticipated benefits of QIAGEN’s products, the timing of the completion of the transaction between QIAGEN and Digene, the anticipated benefits of the business combination transaction involving QIAGEN and Digene, including future financial and operating results, the expected financing for the transaction, the combined company’s plans, objectives, expectations and intentions and other statements that are not historical facts. QIAGEN and Digene caution readers that any forward-looking information is not a guarantee of future performance and that actual results could differ materially from those contained in the forward-looking information. These include risks and uncertainties relating to: the ability to obtain regulatory approvals of the transaction on the proposed terms and schedule; the parties may be unable to complete the transaction because conditions to the closing of the transaction may not be satisfied; the risk that the businesses will not be integrated successfully; the transaction may involve unexpected costs or unexpected liabilities; the risk that the cost savings and any other synergies from the transaction may not be fully realized or may take longer to realize than expected; disruption from the transaction making it more difficult to maintain relationships with customers, employees or suppliers; competition and its effect on pricing, spending, third-party relationships and revenues; the need to develop new products and adapt to significant technological change; implementation of strategies for improving internal growth; use and protection of intellectual property; realization of potential future savings from new productivity initiatives; general worldwide economic conditions and related uncertainties; future legislative, regulatory, or tax changes as well as other economic, business and/or competitive factors; and the effect of exchange rate fluctuations on international operations. In addition, the transaction will require the combined company to obtain significant financing. The combined company’s liquidity and results of operations could be materially adversely affected if such financing is not available on favorable terms.

Moreover, the substantial leverage resulting from such financing will subject the combined company’s business to additional risks and uncertainties. The risks included above are not exhaustive. The most recent reports on Form 20-F, Form 6-K and other periodic reports filed with or furnished to the Securities and Exchange Commission by QIAGEN and the most recent reports on Form 10-K, Form 10-Q, Form 8-K and other periodic reports filed by Digene with the Securities and Exchange Commission contain additional factors that could impact the combined company’s businesses and financial performance. The parties expressly disclaim any obligation or undertaking to release publicly any updates or revisions to any such statements to reflect any change in the parties’ expectations or any change in events, conditions or circumstances on which any such statement is based.

Additional Information

QIAGEN is filing today a Current Report on Form 6-K that will include as exhibits the Agreement and Plan of Merger among QIAGEN, QIAGEN North American Holdings, Inc., QIAGEN’s merger subsidiary and Digene Corporation. QIAGEN intends to file a Registration Statement on Form F-4 and a Schedule TO, and Digene plans to file a Solicitation/Recommendation Statement on Schedule 14D-9, with the Securities and Exchange Commission in connection with the transaction. QIAGEN and Digene expect to mail a Prospectus, which is part of the Registration Statement on Form F-4, the Solicitation/Recommendation Statement on Schedule 14D-9 and related exchange offer materials, including a letter of election and transmittal, to shareholders of Digene upon commencement of the exchange offer. These documents contain important information about the transaction and should be read before any decision is made with respect to the exchange offer. Investors and stockholders will be able to obtain free copies of these documents through the website maintained by the Securities and Exchange Commission at www.sec.gov. Free copies of these documents may also be obtained from QIAGEN, by directing a request to QIAGEN’s IR department at QIAGEN Strasse 1, 40724 Hilden, Germany, or from Digene, by directing a request to Digene at 1201 Clopper Road, Gaithersburg, MD, 20878.

In addition to the Registration Statement on Form F-4, Schedule TO, Prospectus, Solicitation/Recommendation Statement on Schedule 14D-9 and related exchange offer materials, both QIAGEN and Digene file or furnish annual, quarterly and special reports, proxy statements and other information with the Securities and Exchange Commission. You may read and copy any reports, statements or other information filed or furnished by QIAGEN or Digene at the SEC’s Public Reference Room at Station Place, 100 F Street, N.E., Washington, D.C. 20549. You can request copies of these documents by writing to the SEC and paying a fee for the copying cost. Please call the SEC at 1-800-SEC-0330 for more information about the operation of the Public Reference Room. QIAGEN’s and Digene’s SEC filings are also available to the public at the SEC’s web site at http://www.sec.gov, or at their web sites at www.qiagen.com or www.digene.com.