Here are the latest updates about the outbreak, which the World Health Organization has deemed a "global health emergency. China has reported its first diagnosis of the Zika virus in a man who traveled to Venezuela, according to the Associated Press. The year-old man was treated in Venezuela before returning through Hong Kong on Feb. Authorities said it's unlikely the virus will spread due to low mosquito activity in the area, the AP reported.
World Health Organisation Confirms First Three Zika Virus Cases In India
Zika Virus Infection and Microcephaly: A Case-Control Study in Brazil
A strain of Zika virus ZIKV of Asian origin associated with birth defects and neurological disorders has emerged and spread through the Americas. ZIKV was first isolated in the blood of nonhuman primates in Africa and has been detected in the blood, saliva, and urine of a few catarrhine species in both Africa and Asia, suggesting that nonhuman primates may serve as both a source and a reservoir of the virus. The recent introduction of ZIKV to human populations in the Americas presents the potential for the virus to spread into nonhuman primate reservoirs. Thus, it is critical to develop efficient and noninvasive detection methods to monitor the spread of the virus in wild nonhuman primate populations. Here, we describe a method for ZIKV detection in noninvasively collected fecal samples of a Neotropical primate. We compare the fecal results to ZIKV detection in serum, saliva, and urine samples from the same individuals. Our results indicate that fecal detection is a cost-effective, noninvasive method for monitoring wild populations of Neotropical primates as possible ZIKV reservoirs.
Zika Virus Case Study
As the Zika outbreak continues, evidence is mounting in support of the theory that the virus is the reason why than 4, infants in Brazil have been born in recent months with microcephaly , a condition in which a baby has an abnormally small skull and underdeveloped brain. But a new paper, published Thursday in PLOS Neglected Tropical Diseases , suggests exposure to the virus can also result in other pregnancy complications: congenital defects and even stillbirth. The paper recounts details of one pregnancy in Salvador, Brazil. After labor was induced in the 32nd week of her pregnancy, a year-old woman delivered a stillborn in January. In an autopsy of the infant, physicians identified severe inflammation in the central nervous system and an absence of the cerebral cortex.
The relation between Zika virus and microcephaly is widely assumed to be causal because of strong evidence of an association. However, evidence so far comes from case reports, case series, modelling studies, and preliminary reports from cohort studies - none of which have included appropriate control groups. Today, researchers from Brazil and the UK report the preliminary findings of the first case-control study examining the association between microcephaly and in utero Zika virus infection. The study, published in The Lancet Infectious Diseases journal, was requested by the Brazilian Ministry of Health to investigate the causes of the microcephaly epidemic that was declared a Public Health Emergency of International Concern in The study included all infants born with microcephaly delivered in eight public hospitals in Pernambuco State in North Eastern Brazil between 15 January and 2 May