About Anna C.

Anna first volunteered for Planned Parenthood as a high school student in the 1990s. Since then, she has received a bachelor’s degree from UC Berkeley and a master's degree in epidemiology from the University of Arizona. As an ode to her fascination with microbes, she writes the monthly STD Awareness series, as well as other pieces focusing on health and medicine.

Celebrating Mexico’s Contributions to the Birth Control Pill

September 15 to October 15 is National Hispanic Heritage Month. We’re celebrating by shining the spotlight on Mexico’s role in developing the birth control pill, one of the most important medical breakthroughs of the 20th century.


Humanity cannot fully unlock its potential until we release the bonds of oppression from all marginalized groups.


Underneath the surface of a large swath of Southern Mexico’s jungles lay the enormous roots of a wild yam, Dioscorea composita, known locally as barbasco. Mostly it was considered a nuisance, as it could get in the way of subsistence agriculture, but it did have its uses in traditional medicine — and it would change history forever when scientists figured out how to wrest valuable chemical compounds from it, a discovery that led directly to the development of the birth control pill.

Russell Marker. Image: Penn State University ArchivesIn the 1940s, hormones held an untapped potential for research, but there was no cost-effective method of producing large quantities of them — including progesterone, the Pill’s essential ingredient. An American chemist named Russell Marker set out to find a way to synthesize progesterone in abundance, hypothesizing that plants from the genus Dioscorea, which includes yams and agaves, would be a good source for starting material. After some research, he set his sights on wild-growing yams that were found only in Mexico.

Marker’s hunch brought him south of the U.S. border, where locals helped him find and gather these yams, enabling him to develop a method for synthesizing large batches of progesterone — more than had ever been in one place. When pharmaceutical companies would not invest in further research in Mexico, Marker relocated to Mexico City and put his money where his mouth was. In January 1944, he co-founded a lab named Syntex — a portmanteau of “synthesis” and “Mexico” — devoted to finagling hormones from wild Mexican yams. That yam was called barbasco by the indigenous population, and it was the industry’s choice for the raw material in hormone synthesis. Continue reading

STD Awareness: The Curious Case of Chancroid

Haemophilus ducreyi arrange themselves in parallel rows, which researchers have called “railroad tracks,” “schools of fish,” and “fingerprints.” Image: Mike Miller, CDC

Earlier this year, I asked a room full of scientists and medical professionals to raise their hands if they’d ever heard of chancroid. Everyone sat there, motionless, confused by the odd syllables I had uttered — shan kroyd. If you’ve never heard of chancroid, you’re not alone.

Chancroid is a sexually transmitted disease (STD) brought to you by Haemophilus ducreyi, a type of bacteria that can pass through microscopic tears in the skin during sexual contact. When one partner is infected, there is a 1 in 3 chance the other will become infected. An infection can cause painful sores and swollen lymph nodes, most often in the genital region. About half of people with chancroid infections will experience “buboes,” or swollen lymph glands that might rupture. Before it could be cured with antibiotics, a persistent infection could cause permanent skin damage.


Humanity can make chancroid the first STD to go extinct.


One reason you probably haven’t heard of chancroid is that, in the developed world at least, it has mostly disappeared. In fact, researchers believe chancroid can be completely wiped off the planet — which would make it the first STD ever to be forced into extinction. How amazing would that be?

Chancroid has been hopping from loin to loin since at least the days of the ancient Greeks, and was common until the 20th century, when rates began to decline. Thanks to antibiotics, U.S. chancroid rates decreased 80-fold between 1947 and 1997, all but vanishing by the late 1950s. It was virtually unheard of until there was another spike in the 1980s, correlating with the crack epidemic. But, since 1987, cases have been steadily declining. Continue reading

No, the Morning-After Pill Is Not the Abortion Pill

The other week, I was talking to a family member about the threats to contraception access in this country, “thanks” to our new president and his fanatical administration. He thought it was ridiculous that abortion opponents also fight tooth and nail to put obstacles in front of birth control — after all, reliable contraception prevents unintended pregnancies, which itself prevents untold abortions. It seems like a win-win for everyone, regardless of where their opinion on abortion falls.


The morning-after pill prevents pregnancy. The abortion pill ends pregnancy.


Then he said, “Of course, I understand them not wanting tax dollars going toward the morning-after pill, since that causes abortion.”

I had to stop him right there: “Nope.” A bit self-conscious of appearing to be a persnickety know-it-all, I summarized the vast differences between the morning-after pill and the abortion pill — differences that many people, even full supporters of reproductive rights, don’t understand. Opponents of abortion and contraception exploit this misunderstanding, pretending these two pills are one and the same, hoping to elicit “compromise” from “reasonable” people. Compromises that harm real people with real lives and real families. Just as women’s health opponents have been so successful at chipping away at abortion access, so too do they hope to erode access to contraception.

The morning-after pill and the abortion pill are completely different medications, used for different purposes and made up of different ingredients. Let’s look at a quick rundown of the two. Continue reading

STD Awareness: Is Gonorrhea Becoming “Impossible” to Treat?

Image: National Institute of Allergy and Infectious Disease

Health authorities have been worried about it for a long time now, and we’ve been following it on our blog since 2012. The boogeyman? Antibiotic-resistant gonorrhea, a strain of the sexually transmitted bacteria that is becoming more and more difficult to treat. Higher doses of the drug will be needed to cure stubborn cases of gonorrhea — until the doses can no longer be increased. Then, untreatable gonorrhea could be a reality.


“Little now stands between us and untreatable gonorrhea.”


The World Health Organization (WHO), in a press release last month, finally used the word “impossible” when describing treatment of antibiotic-resistant gonorrhea, referring to documented cases of gonorrhea that were “untreatable by all known antibiotics.” Worse, these cases are thought to be the proverbial “tip of the iceberg,” as there aren’t good data on antibiotic-resistant gonorrhea in many developing countries, where gonorrhea is more prevalent and epidemics could be spreading under the radar. Adding to this problem is the fact that gonorrhea rates are climbing worldwide, which is thought to be due to a number of factors, including the decline in condom use, the frequent absence of symptoms, inadequate treatment, and increasing urbanization and travel.

What will happen if gonorrhea can’t be cured? Your infection could clear up on its own, after a lengthy battle with your immune system, but we don’t know a lot about how long this could take (weeks? months? never?). Unfortunately, despite your immune system’s best efforts, gonorrhea doesn’t go out without a fight. Gonorrhea can lead to pelvic inflammatory disease, which can cause tissue damage to the reproductive organs resulting in infertility, ectopic pregnancy, and chronic pain. It can also cause scarring that blocks sperm’s movement out of the testes, resulting in epididymitis, which is associated with infertility, chronic scrotal pain, and testicular shrinkage. Furthermore, gonorrhea increases risk for HIV transmission and can be passed to a baby during childbirth. The CDC estimates that, in the United States alone, untreatable gonorrhea could cause 75,000 cases of pelvic inflammatory disease, 15,000 cases of epididymitis, and 222 extra HIV infections over a 10-year period. Worldwide, where gonorrhea and HIV disproportionately affect developing countries, these problems could get even more out of control. Continue reading

Meet Our Candidates: Tom Tronsdal for Tucson City Council Ward 3

The Arizona primary election will be held on August 29, 2017. Reproductive health care access has been under attack, both nationally and statewide, but Planned Parenthood Advocates of Arizona has endorsed candidates who have shown strong commitment to reproductive justice. In order to vote in the primary election, you must have been registered to vote by July 31. Early voting begins on August 2. Make your voice heard in 2017!

Tom Tronsdal, in his first run for office, threw his hat in the ring for the race for Tucson’s Ward 3 shortly after the New Year. He is a longtime resident of Ward 3, which covers northwest Tucson. Mr. Tronsdal is also an impassioned advocate for people affected by neurological disabilities, and, inspired by his son, has raised thousands of dollars for brain research. Mr. Tronsdal hopes to build on the accomplishments of Ward 3’s departing representative, Karin Uhlich, by focusing on economic growth, including investments in a local employment-ready workforce; public safety, including resources for domestic violence victims, immigrants, and refugees; and support for children and education.


“Deciding whether, when, and under what circumstances you choose to become a parent is one of the most important decisions a person can make.”


Planned Parenthood Advocates of Arizona announced its endorsement of Tom Tronsdal early last month, and he generously took time for an interview with us on July 31, 2017, to tell us more about his background and his campaign.

Tell us a little about your background.

I am a proud pro-choice Democrat who has called Tucson home for over three decades. Raised by a single mother in the heart of Ward 3, I went on to earn a degree in disability law and currently own and operate Canyon Fence Company. Obstacles in my early childhood and raising a special-needs son with my wife, Amanda, give me a unique understanding of the importance of accessibility and opportunity for all Ward 3 residents. Continue reading

STD Awareness: Do IUDs and Implants Prevent STDs?

Highly effective birth control methods, namely intrauterine devices (IUDs) and implants, have received a lot of well-deserved attention in recent years. They are as effective at preventing pregnancy as permanent sterilization, but can be stopped at any time, and can last from three to 12 years. They are the contraceptive of choice for female family-planning providers, who should know a thing or two about choosing an optimal birth control method. They are fantastic options for teenagers and others hoping to delay pregnancy for at least a few years. And the best news is that, for now anyway, these pricey birth control methods are still available at no cost to Americans covered by Medicaid or health insurance.


For the best protection against unintended pregnancy and STDs, combine condoms with IUDs or contraceptive implants.


If IUDs and implants prevented sexually transmitted diseases (STDs), they would pretty much be perfect — but, alas, like most forms of birth control, they don’t protect you from viruses, bacteria, and other bugs that can be passed from person to person through sex. To reduce their risk for STD exposure, sexually active people must employ other strategies, including (1) being in a mutually monogamous relationship with a person who does not have STDs; (2) being vaccinated before becoming sexually active to receive protection from hepatitis B virus and human papillomavirus (HPV), two sexually transmitted viruses; and, last but definitely not least, (3) condoms, condoms, condoms!

A study published this month looked at college students using IUDs and implants and found that most of them didn’t use condoms the last time they had vaginal sex — 57 percent of women who were not using IUDs or implants used a condom, compared to only 24 percent of women who were using IUDs or implants. That’s not too surprising if pregnancy prevention were the only concern, but condoms are an important addition for anyone seeking to reduce their STD risk. Continue reading

STD Awareness: Prevention vs. Punishment

Before antibiotics, syphilis could kill and gonorrhea was responsible for most cases of infertility. Both diseases could spread from husband to wife to baby, potentially destroying families. So you’d think medical breakthroughs in prevention and cures would be welcomed with open arms.

The actual history, like the humans who create it, is much more complicated.


Compassion, rather than fear and guilt, should guide medical practice.


During World War I, sexually transmitted diseases were a huge problem — second only to the 1918 flu pandemic in the number of sick days they caused (7 million, if you’re counting). The Roaring Twenties saw a sexual revolution, and by World War II, the military was once more fretting about losing manpower to debilitating infections that drew men away from the front lines and into the sick bays.

The armed forces did what it could to suppress prostitution and distract soldiers with recreational activities. But the human sex drive could not be contained: The vast majority of U.S. soldiers were having sex — even an estimated half of married soldiers were not faithful to their wives during WWII. Victory depended on soldiers’ health, so during both WWI and WWII, the military provided its sexually active soldiers with “prophylaxis,” medical treatments that could reduce risk for venereal disease — or VD, as sexually transmitted diseases were called back then.

Anyone who thinks condoms are a hassle or “don’t feel good” should read medical historian Allan M. Brandt’s description of a WWI-era prophylactic station, which soldiers were instructed to visit after sexual contact: Continue reading