Please find the wonderful opportunities for high school students during summer break. These are very popular programs so early application will be important.

The CRCHD Research Methodology Training Laboratory
During the summer, students participate in a structured program (6 weeks for high school and 8 weeks for undergraduate and community college students) where they develop an original research project, write a report and prepare a presentation to take to conferences. In addition to their projects all students are exposed to lectures on health disparities research.
The program is designed for students who come from educationally or economically disadvantaged* backgrounds.

Students are considered educationally disadvantaged if they are the first in their families to attend college. Economic disadvantage is if they come from a family with an annual income at or below low-income thresholds according to family size, as published by the U.S. Bureau of the Census. 

The link is as follows.
http://meded.ucsd.edu/crchd/ucsd_summer_lab.html

Furthermore There are other programs
for high school students at
Salk (http://ctri.ucsd.edu/education/Pages/training-salk.aspx),
Sanford-Brnham (http://ctri.ucsd.edu/education/Pages/training-burnham.aspx),
for undergraduate students at
UCSD (http://ctri.ucsd.edu/education/Pages/undergrad.aspx).

You can apply online and if you have questions relaated to those program, please send an email to Dr. Jongdae Lee (j142lee@gmail.com).