Chlamydia is the most commonly reported STD with nearly 1.7 million cases in 2017, up from just over 1.4 million in 2013.
Newer drugs that made HIV less lethal and infectious may have contributed to declining condom use - and the increase in STDs in America, Dr. Gail Bolan, head of the CDC's Division of STD Prevention, told NBC News. "We haven't seen anything like this for two decades".
"We are sliding backward", Jonathan Mermin, M.D., M.P.H, director of CDC's National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention said.
In the a year ago, cases of primary and secondary syphilis grew more than 10%. Forty five percent of those cases were among 15-to 24-year-old females.
Gonorrhea diagnoses almost doubled among gay men - going from 169,130 cases in 2013 to 322,169 a year ago.
Health officials have issued stark warnings as data reveals that sexually transmitted infections are soaring in the US. The U.S.'s rate of new STD cases has been trending upward for some time now, with each of the past four years resulting in "steep and sustained" increases, according to the CDC.
"It is evident the systems that identify, treat, and ultimately prevent STDs are strained to near-breaking point".
The CDC notes that these STDs are curable with antibiotics but often go undiagnosed and untreated, which can lead to severe health problems, including infertility.
"Doctors are not screening and testing for STDs, and patients don't know they need to ask for that screening and treatment", he said at the briefing.
The spike has also been blamed on lower condom usage and antibiotic-resistant strains of diseases.
"State and local STD programs are working with effectively half the budget they had in the early 2000s", Harvey said. "If our representatives are serious about protecting American lives, they will provide adequate funding to address this crisis".
In 2015, CDC began recommending health care providers prescribe a single shot of ceftriaxone accompanied by an oral dose of azithromycin to people diagnosed with gonorrhea. Azithromycin was added to help delay the development of resistance to ceftriaxone.
Over the years, gonorrhea has become resistant to almost every class of antibiotics used against it. Ceftriaxone (Rocephin) now stands as the only antibiotic to retain high effectiveness against gonorrhea in the United States, the CDC says.