The Zika virus like so many other viruses appears to have a lipid coating. And because BHT has been shown to be an effective treatment for so many lipid coated viruses it does seem worth a try for the zika virus. Importantly what BHT can treat it can also prevent if taken on a daily basis.
Based on my experience with BHT as a treatment for hepatitis C the recommended dosage is one 250mg capsule of BHT taken with water on an empty stomach for people who weigh about 125 pounds. For people who weigh 175 to 200 pounds the dosage is 500mg. For people who weigh more than 200 pounds another 250mg of BHT per day may be helpful.
This dosage range is tricky. Most people are OK with that dosage range. Some people do not tolerate BHT well but most people do.
Because there are NO OTHER treatments or preventive supplements available at this time: BHT does seem worth a try. BHT does work for MANY lipid coated viruses for many but not all people.
Dr. W discusses BHT for zika virus HERE: http://taoeconomics.com/ss/viewtopic.php?t=17137
Dr. W along with others successfully treated his hepatitis C infection using BHT and discussed it in this forum a few years back. Trying to help, ...Oscar
EC: Thank you, Oscar! So nice to see you on the site again!