About 75% of counties on the US mainland have suitable habitat for Aedes mosquitoes, CDC researchers say.
The World Health Organization (WHO) yesterday said French officials have notified it of a fatal yellow fever case in a 43-year-old Brazilian woman in French Guiana whose vaccination status isn't known.
In an ongoing multistate Cyclospora outbreak, 96 more patients without a history of international travel who were sick on or after May 1 have been reported to the US Centers for Disease Prevention and Control (CDC), boosting the national total to 347, according to the agency's latest update.
The patients, hospitalized at a speciality center, had a variety of complications and some unusual features.
Also, the species might be resistant to cold temperatures.
The World Organization for Animal Health (OIE) reported three new highly pathogenic H5N8 avian influenza outbreaks on turkey farms in Italy's Lombardy region.
H5N8 was detected on Aug 4 at three commercial farms in the Medole area, which is in the northwestern part of Italy. The report said 94,700 birds are slated for culling.
The US Centers for Disease Control and Prevention (CDC) today announced a multistate Salmonella Typhimurium outbreak linked to microbiology laboratories that has sickened 24 people in 16 states. The infections have been associated with clinical, commercial, and teaching labs.
A study involving rhesus macaques suggests that pre-existing dengue virus immunity does not result in more severe Zika disease, the second study this week to report this type of finding.
An analysis of blood samples from Brazilian patients seen in an emergency department for acute febrile illness found no sign of antibody-dependent enhancement (ADE) in those with Zika infection who had previously been exposed to dengue virus.
The Florida study suggests a 'perfect storm' of conditions made Miami a favorable setting for Zika and that mosquito control helped reduce disease levels.