Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Voyzey John Navin
 2. Date of Event Requiring Statement (Month/Day/Year)
03/10/2008		 3. Issuer Name and Ticker or Trading Symbol
STERIS CORP [STE]
(Last)
(First)
(Middle)
5960 HEISLEY ROAD		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
VP & Gen. Mgr. - Life Sciences
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

MENTOR, OH 44060		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Shares, No Par Value 2,675 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Option to Purchase Common Shares   (2) 06/09/2015 Common Shares, No Par Value 5,000 $ 24.55 D  
Option to Purchase Common Shares   (3) 09/12/2016 Common Shares, No Par Value 5,200 $ 24.72 D  
Option to Purchase Common Shares   (4) 07/27/2017 Common Shares, No Par Value 4,125 $ 27.68 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Voyzey John Navin
5960 HEISLEY ROAD
MENTOR, OH 44060		       VP & Gen. Mgr. - Life Sciences

Signatures

Dennis P. Patton, Authorized Representative under Power of Attorney 03/18/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) All 2,675 of these Common Shares are restricted. The restrictions on these Common Shares lapse as follows: 1,300 on September 7, 2009 and 1,375 on July 27, 2010.
(2) These options become exercisable in 25% increments on May 5, 2006, May 5, 2007, May 5, 2008 and May 5, 2009.
(3) These options become exercisable in 25% increments on September 12, 2007, September 12, 2008, September 12, 2009 and September 12, 2010.
(4) These options become exercisable in 25% increments on July 27, 2008, July 27, 2009, July 27, 2010 and July 27, 2011.

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