FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Klugewicz Sharon W   2. Issuer Name and Ticker or Trading Symbol CHEMBIO DIAGNOSTICS, INC. [CEMI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President, Americas (Last) (First) (Middle) 3661 HORSEBLOCK ROAD 3. Date of Earliest Transaction (Month/Day/Year) 08/28/2017 (Street) MEDFORD, NY 11763 4. If Amendment, Date Original Filed(Month/Day/Year) 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 Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 08/28/2017   M   9,448 (1) A $ 4.45 16,448 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Options to purchase common stock

$ 4.45

08/28/2017

F

12,000 (1)

09/04/2013

09/04/2017

Common Stock

12,000

$ 0

0

D

Options to purchase common stock

$ 4.45

08/28/2017

F

12,000 (1)

09/04/2014

09/04/2017

Common Stock

12,000

$ 0

0

D

Options to purchase common stock

$ 4.45

08/28/2017

F

2,552 (1)

09/04/2015

09/04/2017

Common Stock

2,552

$ 0

0

D

Options to purchase common stock

$ 4.45

08/28/2017

M

9,448 (1)

09/04/2015

09/04/2017

Common Stock

9,448

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Klugewicz Sharon W 3661 HORSEBLOCK ROAD MEDFORD, NY 11763			President, Americas

Signatures

/s/ Sharon Klugewicz		08/29/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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)	The reporting person exercised options to acquire 9,448 shares of common stock by submitting and relinquishing to the issuer options to purchase an additional 26,552 shares of common stock. These additional options to purchase 26,552 shares of common stock constituted payment of the exercise price, using the 10-day volume weighted average price dated August 25, 2017 of $6.0334. As a result of this transaction, the reporting person increased her stock ownership by 9,448 shares of common stock and reduced the number of options owned by 36,000 (9,448 exercised plus 26,552 used to pay the exercise price).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.