Recently, the Ministry of Health of Vietnam expressed concern about the possibility of appearing virus species eating dangerous human brain in the country - Zika virus.
A group of scientists has mapped the regions of the world where Zika virus can spread widely, showing that more than 2 billion people live in these areas.
Small head disease causes babies born with abnormal heads, developing or deviating brain development that leads to intellectual, motor and language disabilities.
Zika, a virus that causes brain damage in children, is still in the womb, which can spread throughout the United States while humans have not found effective vaccines to prevent.
The United States has recorded 3 more cases of Zika infection - a virus transmitted from mosquitoes, which can cause birth defects.
Disease caused by virus