The seven were among the initial nine students who were taken ill one after the other at the Lakandula Elementary School in this city.
Two of them already attended classes starting last Monday.
In an interview, Mabalacat City legal officer Emmanuel Ignacio said the two who reported to classes were found to be suffering from ailments, including gastroenteritis, which were not related to dengue.
Ignacio quoted local health officials as saying that the illnesses of the other seven students could not be directly linked to the vaccine Dengvaxia which was first administered to them when they were still in Grade 4.
The initial plan of the Department of Health (DOH) was to administer three doses of Dengvaxia which was manufactured by the French firm Sanofi Pasteur.
Earlier, Sanofi confirmed earlier studies of experts indicating that Dengvaxia was not suitable for persons without any history of dengue could later suffer from severe dengue, a viral mosquito- borne ailment that lowers blood platelets and cause hemorrhage.
Some 700,000 elementary schoolers were vaccination with it in Central Luzon, National Capital Region, and Southern Tagalog region. Ignacio said that while health officials could not immediately establish whether the ailments of the students in Lakandula could be linked to Dengvaxia, but noted that nothing was conclusive yet.
A teacher at the Lakandula Elementary School, who asked not to be identified, said that while the Mabalacat City government has been extending assistance to the families of the students, direct help from the DOH has not come.
There are reports that a team of doctors from the DOH have been staying at a hotel in Angeles City to closely monitor possible cases that could be linked to Dengvaxia.
The ailing students have remained under strict monitoring by Mabalacat health officials.
