1. A synthetic nucleic acid comprising 10-30 consecutive nucleotides, wherein the synthetic nucleic acid sequence comprises at least 10-20 consecutive nucleotides of any one of the following sequences: (i) SEQ ID NO: 3, a sequence complementary thereto, or a sequence that is capable of hybridizing to SEQ ID NO:3, or its complement, under stringent conditions; (ii) SEQ ID NO: 4, a sequence complementary thereto, or a sequence that is capable of hybridizing to SEQ ID NO:4, or its complement, under stringent conditions; (iii) SEQ ID NO: 5, a sequence complementary thereto, or a sequence that is capable of hybridizing to SEQ ID NO:5, or its complement, under stringent conditions; or (iv) SEQ ID NO: 6, a sequence complementary thereto, or a sequence that is capable of hybridizing to SEQ ID NO:6, or its complement, under stringent conditions.