In the latest round of lab studies to pinpoint how Zika virus infects and causes birth defects in fetuses, researchers today reported several new clues related to the route and timing of infection, differences between the two viral strains, and even an antibiotic with the potential to block some of the damage.
How spread occurred is unresolved, but high virus levels might be a factor.
After a woman returned to the US from a Zika-affected area, a single act of intercourse likely transmitted the virus.
Also, studies explore Zika-dengue antibody dynamics and co-infections with chikungunya.
The microcephaly case is the 4th in a US state, and the CDC says Olympic travel poses a low Zika risk.
A French research team yesterday reported the first known detection of Zika virus in the genital tract of an infected woman, along with signs that it persists there after it clears from blood and urine. The team, from Guadeloupe and Toulouse, reported its findings in a letter to The Lancet Infectious Diseases.
Vector control experts voice concern over a CDC/EPA plan to spray in Puerto Rico.
Utah health officials today announced the first known Zika death in the continental United States, in a Salt Lake County resident who died in late June.
The CDC and EPA recommend the step to cut mosquito populations.
The study will monitor for infections in athletes, coaches, and USOC staff.
