Zika Virus Testing Considerations: Lessons Learned from the First 80 Real-Time Reverse Transcription-PCR-Positive Cases Diagnosed in New York State.

The performance and interpretation of laboratory tests for Zika virus (ZKV) continue to be evaluated. Serology is cross-reactive, laborious, and frequently difficult to interpret, and serum was initially solely recommended for molecular diagnosis. ZKV testing was initiated in January 2016 in New York State for symptomatic patients, pregnant women, their infants, and patients with Guillain-Barré syndrome who had traveled to areas with ZKV transmission. Subsequently, eligibility was expanded to pregnant women with sexual partners with similar travel histories. Serum and urine collected within 4 weeks of symptom onset or within 6 weeks of travel were tested with real-time reverse transcription-PCR (RT-PCR) assays targeting the ZKV envelope and NS2B genes. In this review of lessons learned from the first 80 positive cases in NYS, ZKV RNA was detected in urine only in 50 patients, in serum only in 19 patients, and in both samples concurrently in 11 patients, with average viral loads in urine a log higher than those in serum. Among 93 positive samples from the 80 patients, 41 were positive on both gene assays, 52 were positive on the envelope only, and none were positive on the NS2B only. Of the 80 infected patients, test results for 74 (93%) would have defined their infection status as not detected or equivocal if the requirement for positive results from two assay targets (two-target-positive requirement) in the initial federal guidance to public health laboratories was enforced, if urine was not tested, or if the extended eligibility time for molecular testing was not implemented. These changes facilitated more extensive molecular diagnosis of ZKV, reducing reliance on time-consuming and potentially inconclusive serology.

Identification of endogenous Coccidioides posadasii contamination of commercial primary rhesus monkey kidney cells.

Here we describe the identification of endogenous Coccidioides posadasii contamination in commercial rhesus monkey kidney (RhMK) cells and the subsequent nationwide alert that reduced the risk of laboratory exposure. This extraordinary event highlights the necessity for laboratories to remain vigilant in the use of appropriate biosafety procedures, particularly when working with unknown pathogens.

H1N1 2009 influenza virus infection during pregnancy in the USA.

BACKGROUND: Pandemic H1N1 2009 influenza virus has been identified as the cause of a widespread outbreak of febrile respiratory infection in the USA and worldwide. We summarised cases of infection with pandemic H1N1 virus in pregnant women identified in the USA during the first month of the present outbreak, and deaths associated with this virus during the first 2 months of the outbreak. METHODS: After initial reports of infection in pregnant women, the US Centers for Disease Control and Prevention (CDC) began systematically collecting additional information about cases and deaths in pregnant women in the USA with pandemic H1N1 virus infection as part of enhanced surveillance. A confirmed case was defined as an acute respiratory illness with laboratory-confirmed pandemic H1N1 virus infection by real-time reverse-transcriptase PCR or viral culture; a probable case was defined as a person with an acute febrile respiratory illness who was positive for influenza A, but negative for H1 and H3. We used population estimates derived from the 2007 census data to calculate rates of admission to hospital and illness. FINDINGS: From April 15 to May 18, 2009, 34 confirmed or probable cases of pandemic H1N1 in pregnant women were reported to CDC from 13 states. 11 (32%) women were admitted to hospital. The estimated rate of admission for pandemic H1N1 influenza virus infection in pregnant women during the first month of the outbreak was higher than it was in the general population (0.32 per 100 000 pregnant women, 95% CI 0.13-0.52 vs 0.076 per 100 000 population at risk, 95% CI 0.07-0.09). Between April 15 and June 16, 2009, six deaths in pregnant women were reported to the CDC; all were in women who had developed pneumonia and subsequent acute respiratory distress syndrome requiring mechanical ventilation. INTERPRETATION: Pregnant women might be at increased risk for complications from pandemic H1N1 virus infection. These data lend support to the present recommendation to promptly treat pregnant women with H1N1 influenza virus infection with anti-influenza drugs. FUNDING: US CDC.

The federal smallpox vaccination program: where do we go from here?

Despite the underwhelming response to the federal government's initiative to inoculate health care workers against smallpox, the Bush administration has indicated that the program will continue and that it could be expanded to include other health care providers, emergency service workers, and others deemed essential for continuity of government. We discuss the reasons for the program's failure to date, outline recent advisories questioning the extent of the vaccination effort, and suggest suspension of further vaccination efforts until certain questions and issues are resolved.

Prescribing conventional antipsychotics in the era of novel antipsychotics: informed consent issues.

The goal of this study was to ascertain why patients are maintained on conventional antipsychotics and whether the risks/benefits and alternative treatments with novel antipsychotics are discussed with these patients. We reviewed the charts of 117 outpatients maintained on conventional antipsychotics at three New York hospitals: Hutchings Psychiatric Center (HPC), Syracuse Veterans Affairs Medical Center (SVA), and the Continuing Day Treatment Program (CDT). The major reasons for maintaining patients on conventional antipsychotics were good response (50%), patient choice (45%), and physician choice (36%). Despite the high incidence of tardive dyskinesia at all three hospitals (range: 12%-50%), physicians often did not discuss the risks/benefits of continuing conventional antipsychotics with the patients. The treating psychiatrist discussed alternative treatments with 37% of patients at SVA, 58% at HPC, and 68% at CDT (P = 0.066, df = 2, Pearson chi(2) test). For patients who are receiving any antipsychotic therapy, discussions about the risks/benefits of treatments are integral for optimal treatment and medicolegal purposes.