Nothing contained in this chapter shall be construed as in any way affecting, modifying, repealing, or superseding the provisions of section 351 of Public Health Service Act [
42 U.S.C.
262] (relating to viruses, serums, toxins, and analogous products applicable to man); the virus, serum, toxin, and analogous products provisions, applicable to domestic animals, of the Act of Congress approved March 4, 1913 (
37 Stat. 832–833) [
21 U.S.C.
151 et seq.]; the Filled Cheese Act of June 6, 1896 (U.S.C., 1934 ed., title
26, ch. 10), the Filled Milk Act of March 4, 1923 [
21 U.S.C.
61 et seq.]; or the Import Milk Act of February 15, 1927 [
21 U.S.C.
141 et seq.].