Country's president-elect is member of ruling Colorado Party
Activists plan to demand rights, protest inequalities
Pontiff traveling throughout South America
Some countries supported it ‘with reservations’
At least 10 injured during protest ahead of OAS meeting
Simón Cazal and Sergio López tied the knot in Argentina in 2012
Activists say it reaffirms administration’s commitment to LGBT rights.
Facility will offer free HIV tests and other services to men.