Ruiz, Ellalyn De Vera <br/><br/>
Covid-19 positivity rates decrease in several Luzon provinces - OCTA / 
Ellalyn De Vera-Ruiz. 
 - [S.l.] :  Manila Bulletin,  June 20, 2023. 
<br/><br/>In:  Manila Bulletin (June 20, 2023), various columns, various pagination 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communicable diseases.