For viruses like dengue, being injected with the pathogen as in a vaccine can open the door to secondary infections.
Our immune system protects us but when it comes to some mosquito-borne disease, it can work against us. What are the implications for the development of a Zika virus vaccine?
A pickup truck from the Department of Health fumigates in San Juan, Jan. 27, 2016.
It's hard to contain a mosquito-borne infection like Zika when the conditions are ideal for it to spread.
Pregnant women in Sierra Leone, Guinea and Liberia were faced with the double fear of dying from Ebola as well during childbirth.
We found that less than 1% of published research papers around the time of both outbreaks, that related to the outbreaks, actually explored their gendered impact.
Three researchers examine the big challenges of urban development: from city leadership to lock-ins.
Patients in a hospice in Myanmar.
REUTERS/Soe Zeya Tun
Increasing isolation threatens global health. International cooperation is critical to fighting diseases that will not respect borders.
A vial of the Zika Virus Investigational DNA Vaccine from the NIH.
NIH Image Gallery/Flickr
The long vaccine development process is focused on ensuring production of the safest and most effective vaccine for use.
The outbreak of Zika virus in Brazil had Australian travellers on alert but transmission is only possible in tropical Queensland.
New research shows common local mosquitoes aren’t able to spread Zika. This means Australia is unlikely to see a major outbreak of the disease. But a risk remains in northern Queensland.
County officials gear up to hand-spray mosquitoes in San Diego.
Congress has failed three times to approve spending to stop the spread of Zika. Their long-term response isn't much better.
Most cases of Zika are asymptomatic.
Airman Magazine/U.S. Air Force Photo/Tech. Sgt. Brandon Shapiro/Flickr
A computer model suggests that while more cases of Zika can be expected in the continental U.S. outbreaks will probably be small and are not projected to spread.
A woman looks at a CDC health advisory sign about Zika at Miami International Airport
Politics, not epidemiology or medicine, drives government responses to disease. Politicians are the ultimate decision-makers in public health, and they must respond to political forces.
With more birth abnormalities linked to Zika, effects of the virus may be more sinister than we thought.
Arthrogryposis is where a baby's joints are deformed due to a shortening (known as contractures) of the muscles from before birth.
Researchers are trying to understand how maternal immune responses might contribute to certain neurological disorders in offspring.
A pregnant woman's immune response may be a risk factor for some neurological conditions like autism and schizophrenia in the baby later on.
Talking with patients who’ve had Zika is tough.
Pregnant woman and doctor image via www.shutterstock.com.
Physicians like me are learning about Zika along with our patients. This takes a dose of humility on our part and an understanding from our patients that we learn something new every single day.
Aedes aegypti: bringing you Zika, dengue and Chikungunya.
Zika had already reached 46,000 probable cases by the end of May 2016 and is transmitted by the same mosquito species as dengue and Chikungunya.
A display used to educate the public on rubella vaccination and the mother-to-fetus transmission of this virus.
Centers for Disease Control and Prevention via Public Health Image Library
Though separated by time and place, there are surprising similarities in the the social issues raised by the rubella outbreak of 1964-65 and the recent Zika outbreak in South America.
GMOs may very well have filled up that syringe.
Syringe image via www.shutterstock.com
Public health experts enlist the molecular biology tools that create genetically modified organisms – as well as the GMOs themselves – in the fight against emerging infectious diseases.
An aerial view of the Christ the Redeemer statue and Maracana stadium in Rio de Janeiro.
The chance the someone at the Rio games will import the virus to their home country is low.
Is a Zika vaccine being tested ahead of vaccines for other flaviviruses because Zika’s occurring in the context of an international sporting competition?
Recently two events concerning the Zika epidemic coincided: two potential vaccines against the virus were declared a success when used in mice, and Jason Day withdrew from the Olympic Games.
There’s something in the bite.
Inflammation caused by mosquito bites helps viruses to infect the body.
Controlling mosquitoes has a large effect on controlling the diseases they carry.
Innovations targeted at mosquito control are good but should not draw focus away from the tried and tested public health measures to control mosquito-borne diseases.