Results 121 to 130 of about 1,747 (193)

دراسات على بعض مظاهر نشاط مضادات الفيروسات 1 - تأثير البروبرليس على فيروس مرض النيوكاسيل

open access: yes, 1994
The effect of popolis on different-Newcastle disease virus (NDV) vaccinal strains as well as virulent virus were studied. It was clear that the addition of propolis to NDV induced a significant reduction of infectivity mean titres. The effect of propolis
El Berdiny, F.   +5 more
core  

Surveillance for variants of SARS-CoV-2 to inform risk assessments. [PDF]

open access: yesBull World Health Organ, 2023
Attar Cohen H   +30 more
europepmc   +1 more source

Community-Based Seroprevelance of SARS-CoV-2 in Saudi Arabia. [PDF]

open access: yesCureus, 2022
Alassaf L   +10 more
europepmc   +1 more source

Prevention of mother-to-child transmission of hepatitis B virus in antenatal care and maternity services, Mozambique. [PDF]

open access: yesBull World Health Organ, 2022
Loarec A   +9 more
europepmc   +1 more source

Prevention of mother-to-child transmission of HIV at the second immunization visit: a cross-sectional study, Burkina Faso. [PDF]

open access: yesBull World Health Organ, 2022
Sakana BLD   +15 more
europepmc   +1 more source

COVID-19 فيروس كورونا

open access: yes, 2020
Title from PDF caption (viewed on March 10, 2020)."OHA 2685 Arabic (03/2020)"--Page 2.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program.

core  

A national nudge study of differently framed messages to increase COVID-19 vaccine uptake in Saudi Arabia: A randomized controlled trial. [PDF]

open access: yesSaudi Pharm J, 2023
Alhajji M   +15 more
europepmc   +1 more source

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