Tracing the start of COVID-19 in GA

At a time when COVID-19 appears to be receding in much of Georgia, it’s worth revisiting the start of the pandemic in early 2020. Emory virologist Anne Piantadosi and colleagues have a paper in Viral Evolution on the earliest SARS-CoV-2 genetic sequences detected in Georgia. Analyzing relationships between those virus sequences and samples from other states and countries can give us an idea about where the first COVID-19 infections in Georgia came from. We can draw Read more

Reddit as window into opioid withdrawal strategies

Drug abuse researchers are using the social media site Reddit as a window into the experiences of people living with opioid addiction. Abeed Sarker in Emory's Department of Biomedical Informatics has a paper in Clinical Toxicology focusing on the phenomenon of “precipitated withdrawal,” in collaboration with emergency medicine specialists from Penn, Rutgers and Mt Sinai. Precipitated withdrawal is a more intense form of withdrawal that can occur when someone who was using opioids starts medication-assisted treatment Read more

CROI: HIV cure report and ongoing research

The big news out of CROI (Conference on Retroviruses and Opportunistic Infections) was a report of a third person being cured of HIV infection, this time using umbilical cord blood for a hematopoetic stem cell transplant. Emory’s Carlos del Rio gave a nice overview of the achievement for NPR this morning. As del Rio explains, the field of HIV cure research took off over the last decade after Timothy Brown, known as “the Berlin patient,” Read more

cholera

Cholera in the time of disaster

Alex Larsen couldn’t make it to the 2010 International Association of National Public Health Institutes (IANPHI) annual meeting. That’s because Larsen, Haiti’s minister of health, was attending to an outbreak of cholera in this impoverished republic.

Vibrio cholerae bacteria

Larsen was scheduled to speak on NPHIs’ role in disaster preparedness and response. Instead, Scott Dowell, director of the CDC’s division of global disease detection and emergency response, updated attendees about goings-on in Haiti since the massive January 12 earthquake and the recent outbreak of cholera.

The first two weeks after the tremblor and its immediate aftershocks, human and monetary resources were spent on search and rescue, including emergency trauma care, orthopedic surgery and amputations, says Dowell.

The number killed now stands at 200,000. The number displaced: 1.3 million. In addition to an initial lack of safe drinking water, hunger and poor sanitation, anecdotal accounts of diphtheria and tetanus outbreaks circulated. The headquarters housing the ministry of public health was itself devastated when it collapsed, killing most of the minister’s staff who had remained inside.

Since the earthquake, Dowell says the water supply has slowly improved with long-term sources coming on line. Efforts to better separate sewage and water are coming to fruition, too.

As far as the cholera outbreak is concerned, this chapter of Haiti’s public health challenges is just beginning thanks in part to Haiti having never before experienced a known cholera epidemic, says Dowell. That is, its population is most likely immunologically naïve to cholera, making people vulnerable to the bacteria’s devastating ways: severe diarrhea, vomiting, and abdominal pain culminating in overwhelming dehydration and even death.

Despite its troubles, Dowell says there’s long-term hope for Haiti. As found in other countries affected by cholera, an aggressive program to provide clean water and keep sewage and water separate, can eventually squelch the bacteria’s rampage—and in the meantime prevent other diseases from taking hold.

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