The Spaniard was the first Premier League identity to contract the illness, which subsequently led to the competition suspending matches.
"I am feeling completely recovered," he told the club's website. "It's true I started having some symptoms when we got the phone call from the club to let us know that we might be exposed to the virus because of the owner of Olympiacos.
"We had a game the following day against Manchester City, so I made a decision and called the doctor straight away and I asked him to drive home.
"I spoke with Raul (Sanllehi), Edu, Vinai (Venkatesham), Huss (Fahmy) and we set up a meeting together and I said, listen, we have a couple of players that have been exposed. There is a massive risk there and as well I am the first one feeling the symptoms, very clear symptoms.
"So if that is the case, all of the players and the people related to the club who are in contact with me on a daily basis are exposed.
"So we cannot make that decision, we have to speak to the Premier League, to Manchester City and we have to make the decision pretty quickly'.
He added: "It was a normal virus for me. I had three or four days which were a little bit difficult, with a bit of a temperature and a dry cough, and some discomfort in my chest.
"That was it. The difficulty is that I have people at home, three kids as well and I was worried. My missus has been through it and our nanny's been through it. Thank God, the kids never got it. We are all completely fine now
"We have to try to help the NHS as much as possible and we have to give the opportunity to the elderly people who needs this more than anybody else to get the treatment they require.
"We have to slow the process down and the virus down, so please stay at home."