Looking for Public Health Nurse job in San Diego County

I have been an RN for 13 years and have a background in ER/ICU/Flight Nursing/Occupational Health/ and Research. Since getting laid off from research, I have decided to pursue public health nursing and use my public health nurse certificate. I applied in San Diego and have been placed on the eligibility list for Public Health Nurse I and II since January of 2009. Only two PHN II positions have come up in the past seven months. I interviewed for TB Control case manager and didnt get it. I just interviewed for a PHN position in maternal child care and I havent heard yet. I couldnt get a feel for what type of nurse they were looking for. Is being a male nurse a downside for public health nursing?? Are there any public health nurses out there who might have some advice for interviewing and getting a job in public health??