The president of Venezuela, Hugo Chavez , on Wednesday described as "very strange" the succession of cancer diagnoses in several Latin American presidents and exgobernantes and wondered if someone has not developed "technology to induce" disease. After the Tuesday became known that his counterpart in Argentina, Cristina Fernandez, has a cancerous tumor in the thyroid gland , Chavez said "it is very difficult to explain at this point" what happened "some of us in Latin America." "At least it's strange, very, very, very strange," said Chavez in an act of military rise of mandatory network broadcast radio and television. He said not to "throw any accusations reckless" , but wondered: "Is it strange that they had developed a technology to induce cancer and no one knows so far and it is discovered within 50 years or who knows how many?". The Venezuelan president recalled the case of hundreds of Guatemalans subjected to experiments with syphilis by the U.S. in the 1940's. "I do not know, just let the thought, but this is very, very, very strange that cancer has given us," insisted the Venezuelan president, who was operated on for a tumor in the pelvic area on 20 June, which he says already recovered. Evo take care. Correa, take care. Sure, you do not know... Chavez recalled that, with the diagnosis of Fernandez, and there are several regional leaders who have had this condition as current president of Brazil, Dilma Rousseff , his predecessor, Luiz Inacio Lula daor Paraguayan President Fernando Lugo. "Well, we must take great care to Evo. Evo take care. Correa, beware. Of course, you do not know," Chavez said, referring to their counterparts in Bolivia and Ecuador, Evo Morales and Rafael Correa. "Fidel always told me: Chavez Be careful, because you people you throw up. Look, care, these people have developed technologies, you are very careless, careful what you eat , watch a small needle and inject you do not know why, "he told the remember a conversation with Cuban president Fidel Castro. "In any case, I repeat, I am not accusing anyone, I'm just using my freedom to think and make comments to facts very strange and difficult to explain," Chavez said.