Exhibit 5 and 23(a)
                                                             -------------------

                                                 January 21, 2000


Abatix Corp.
8311 Eastpoint Drive, # 400
Dallas, TX 75227

RE:      ABATIX CORP. (THE "COMPANY") - REGISTRATION STATEMENT ON FORM S-3

Dear Sir/Madam:

     We refer to the Registration Statement (the "Registration Statement") filed
by Abatix,  Corp.,  a Delaware  corporation,  with the  Securities  and Exchange
Commission under the Securities Act of 1933, as amended,  in connection with the
sale of up to  23,500  shares of Common  Stock,  $.001 par value per share  (the
"Shares"), as set forth in the above Registration Statement.

     In our capacity as counsel to the Company, we have examined the original or
certified  copies of all such  records of the Company  and all such  agreements,
certificates of public officials, certificates of officers or representatives of
the  Company  and  others,  and such other  documents  as we deem  relevant  and
necessary as a basis for the opinions hereinafter expressed. In such examination
we have assumed the genuineness of all signatures on original  documents and the
conformity to original  documents of all copies  submitted to us as conformed or
photostat copies. As to various questions of fact material to such opinions,  we
have relied upon statements or certificates of officials and  representatives of
the Company and others.

     Based upon the foregoing, it is our opinion that:

     1. The Company is a corporation  duly organized and validly  existing under
the laws of the State of Delaware.

     2. The Shares offered for the account of the Selling  Shareholders,  as set
forth in the Registration Statement, have been duly and validly authorized.

     3. The  Shares  have been duly and  validly  issued  and are fully paid and
non-assessable.

     We  hereby  consent  to  filing  of  this  opinion  as an  Exhibit  to  the
Registration  Statement.  We also  hereby  consent  to the use of our name under
"Legal  Matters"  in  the  Prospectus  constituting  part  of  the  Registration
Statement.

                                        Very truly yours,

                                        /s/ATLAS, PEARLMAN, TROP & BORKSON, P.A.
                                        ----------------------------------------
                                        ATLAS, PEARLMAN, TROP & BORKSON, P.A.


JMS/bb