Azithromycin - Is it the same as Streptomycin?

No they are different sorts of antibiotics.

Azithromycin is a macrolide antibiotic. It is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases.

http://www.drugs.com/mtm/azithromycin.html

Streptomycin is an aminoglycoside antibiotic. It works by killing sensitive bacteria by stopping the production of essential proteins needed by the bacteria to survive. It is used to treat tuberculosis (TB) and infections caused by certain bacteria.

http://www.drugs.com/cdi/streptomycin.html