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Syphilis is a sexually transmitted disease (STD) that remains a global health threat. Syphilis rates in the United States have also been increasing. Left untreated, syphilis infection can span decades and have serious complications including blindness, dementia and paralysis. Syphilis in pregnancy causes prematurity, low birthweight, neonatal death, and infections in newborns. Improvements in syphilis detection are needed to facilitate early diagnosis of active infections and monitor treatment with antibiotics.

Syphilis, a genital ulcerative disease caused by the bacterium Treponema pallidum, is associated with significant complications if left untreated. Syphilis rates in the United States have been increasing.

According to 2010-2014 World Health Organization (WHO) research, dog-transmitted human rabies was present or suspected in 150 countries and territories worldwide. Domestic dogs were the most common reservoir of the rabies virus in these countries, and more than 99% of human deaths were caused by dog-transmitted rabies. Rabies is 100% preventable in dogs with appropriate administration of vaccines.

Zika virus infection during pregnancy can cause microcephaly and other severe birth defects. The CDC Zika MAC-ELISA (IgM antibody capture enzyme-linked immunosorbent assay) currently used for diagnosis detects antibodies produced to fight a Zika virus infection. However, reactivity of flavivirus antibodies (from exposure to other mosquito-borne infections such as dengue or West Nile virus) can complicate the interpretation of these results.

The U.S. Food and Drug Administration and World Health Organization (WHO) approved the antiretroviral drug emtricitabine (FTC)/ tenofovir disoproxil fumurate (TDF) combination for HIV pre-exposure prophylaxis (PrEP) in high risk populations. Efficacy of PrEP depends strongly on adherence to taking the FTC/TDF pill daily. In the US, the Centers for Disease Control and Prevention (CDC) estimates that 1.2 million Americans will benefit from PrEP. FTC is also a key component of antiretroviral therapy (ART) regimens of HIV-infected persons and significantly associated with adherence.

The technology describes the composition of small molecule compounds that are antagonists of the P2Y14 receptor. Also provided are methods of using the compounds, including a method of treating a disorder, such as inflammation, diabetes, insulin resistance, hyperglycemia, a lipid disorder, obesity, a condition associated with metabolic syndrome, and asthma, and a method of antagonizing P2Y14 receptor activity in a cell.

The technology discloses composition of compounds that fully antagonize the human P2Y14 receptor, with moderate affinity with insignificant antagonism of other P2Y receptors. Therefore, they are highly selective P2Y14 receptor antagonists. Even though there is no P2Y14 receptor modulators in clinical use currently, selective P2Y14 receptor antagonists are sought as potential therapeutic treatments for asthma, cystic fibrosis, inflammation and possibly diabetes and neurodegeneration.

Flaviviruses such as Zika virus, dengue virus, West Nile virus, yellow fever virus, and Japanese encephalitis virus cause widespread illness and death throughout the world. Typically, flaviviruses get transmitted through the bite of infected mosquitoes and ticks.

During lung infection, bloodstream neutrophils (PMNs) responding to infection travel to the airspace lumen. Although successful arrival of microbicidal PMNs to the airspace is essential for host defense against inhaled pathogens, excessive accumulation of PMNs in the lung contributes to the pathogenesis of several prevalent lung disorders, including acute lung injury, bronchiectasis, and COPD. Unfortunately, there is no treatment for controlling PMN accumulation in the lung.

According to the World Health Organization (WHO), rabies causes greater than 59,000 deaths every year in over 150 countries as of 2017. A rapid and reliable diagnostic test for rabies is critical for prophylaxis considerations in humans bitten by animals as well as for basic surveillance and animal rabies control programs. The World Organization of Animal Health (OIE) and WHO Expert Committee on Rabies recently approved the direct rapid immunohistochemical test (DRIT) for rabies diagnostics.