<p>SAN FRANCISCO (AP) --Â The San Francisco health department toned down its campaign to combat rising syphilis infections after the company that owns the city's bus shelters refused to display a male genitalia cartoon.</p>
<p>Viacom Outdoor objected to the Healthy Penis 2002 ads on five bus shelters in the city's predominantly gay Castro District, saying they would offend children and families.</p>