Cases of toxic distal polyneuropathy have been studied in a plant producing plastic-coated and color-printed fabrics. After the screenig of 1,157 employees, a total of 86 verified cases were detected. Of these, 11 were moderate to severe in intensity and usually with motor and sensory involvement; 38 were mild, with sensory signs prevailing; and 37 were… (More)
BACKGROUND After a community investigation had implicated hospital admission as a shared feature of a cluster of acute Plasmodium falciparum malaria (AFM) cases in Riyadh, Saudi Arabia, we began an in-hospital investigation to determine the method of transmission. METHODS We investigated all AFM patients admitted to one paediatric hospital for any reason… (More)
We investigated a cluster of 5 plague cases; the patients included 4 with severe pharyngitis and submandibular lymphadenitis. These 4 case-patients had eaten raw camel liver. Yersinia pestis was isolated from bone marrow of the camel and from jirds (Meriones libycus) and fleas (Xenopsylla cheopis) captured at the camel corral.
During an outbreak of meningococcal meningitis in Saudi Arabia, oral rifampicin (four doses in two days) was compared with a single intramuscular dose of ceftriaxone for prophylaxis in family contacts of patients with meningococcal disease. Pharyngeal samples were taken for culture before and 1 and 2 weeks after administration. Both follow-up cultures… (More)
INTRODUCTION Since the late 1970's, time-space clusters of sudden unexplained death (SUD) in northwest Yunnan, China have alarmed the public and health authorities. From 2006-2009, we initiated enhanced surveillance for SUD to identify a cause, and we warned villagers to avoid eating unfamiliar mushrooms. METHODS We established surveillance for SUD,… (More)
Shiga toxin (ST) from Shigella dysenteriae type 1 is accepted as a cause of hemolytic uremic syndrome (HUS); however, the reasons why HUS develops in only some infected patients are not clear (1). The possibility that antibiotic therapy is associated with the development of HUS has been explored for S. dysenteriae type 1 and for Es-cherichia coli O157:H7… (More)
In response to several influenza A(H1N1)pdm09 infections that developed in passengers after they traveled on the same 2 flights from New York, New York, USA, to Hong Kong, China, to Fuzhou, China, we assessed transmission of influenza A(H1N1)pdm09 virus on these flights. We defined a case of infection as onset of fever and respiratory symptoms and detection… (More)
BACKGROUND Clusters of sudden unexplained death (SUD) in Yunnan Province, China, have been linked to eating Trogia venenata mushrooms. We evaluated the toxic effect of this mushroom on mice. METHODS We prepared extracts of fresh T. venenata and Laccaria vinaceoavellanea mushrooms collected from the environs of a village that had SUD. We randomly allocated… (More)