TWiV reviews the genetic characterization of a new strain of type 2 oral polio vaccine and its implications for eradication, and how a polymorphism in humans comprising a single amino acid change in an antibody molecule regulates vaccine elicitation of broadly neutralizing antibodies against influenza virus HA.

In his weekly clinical update Dr. Griffin discusses antibody response against nonpoliovirus enteroviruses, clinical presentation and virological assessment of confirmed human monkeypox virus cases in Spain, object and surface contamination with monkeypox virus, monkeypox virus infection in humans across 16 countries, clinical characteristics of ambulatory and hospitalized patients with monkeypox virus infection, compassionate use of Tecovirimat for the treatment of monkeypox infection, monitoring of Pfizer-BioNTech vaccine among children, Pfizer and BioNTech announce updated vaccine data supporting efficacy in children, direct capture of neutralized RBD enables rapid point-of-care assessment of SARS-CoV-2 neutralizing antibody titer, Pfizer and BioNTech submit application for bivalent vaccine, and Oral Nirmatrelvir and Ritonavir in non-hospitalized vaccinated patients with COVID-19.

In his weekly clinical update Dr. Griffin discusses the public health response to a polio case in a unvaccinated NY state resident, human to dog transmission of monkeypox virus, Tecovirimat and the treatment of monkeypox, detection of asymptomatic monkeypox virus infections among male sexual health clinic attendees in Belgium, what to do if you are exposed to SARS-CoV-2 and isolation and precautions for people with COVID-19, risk of SARS-CoV-2 infection in health care workers, effectiveness of HEPA filters at removing infectious SARS-CoV-2 from the air, Pfizer reports additional data on Paxlovid, hospitalization encounters for infection after Paxlovid, a randomized trial of Metformin, Ivermectin, and Fluvoxamine, and readmissions, post-discharge mortality and sustained recovery among patients admitted to hospital with COVID-19.

In his weekly clinical update Dr. Griffin discusses guidance for prevention and treatment of monkeypox, post-infectious symptoms among children and adolescents, profiling post-infectious syndromes of different variants, comparison of vaccine Ankara vs intradermal routes of administration, infection in vaccinated individuals treated with or without PAXLOVID, duration of symptoms with positive rapid antigen after infection, epidemiologic characteristics of monkeypox, and sequelae of post-acute infection.

In his weekly clinical update Dr. Griffin discusses Tecovirimat for treatment of monkeypox, the safety and acceptance of vaccination after multisystem inflammatory syndrome, variants in solid organ transplant recipients, masks for prevention of respiratory virus infections, pre-exposure prophylaxis with Evusheld, the association between Evusheld administration and infection,  if repeat administration of casirivimab and imdevimab is well-tolerated, viral and symptom rebound in untreated infection, extended Remdesivir infusion for persistent infection, Baricitinib in patients admitted with infection, and cognitive impairment 13 months after hospitalization.

In his weekly clinical update Dr. Griffin discusses monkeypox virus infection in humans across 16 countries, pregnancy outcomes after SARS-CoV-2 infection by trimester, vaccination intent and belief, antiviral drug treatment for non-severe disease, the association of smoking with infected hospitalized patients, the association of Paxlovid on negative conversion rates among high-risk patients with COVID-19, safety and efficacy of Molnupiravir, usage of enoxaparin for primary thromboprophylaxis, statin and aspirin as therapy in infected patients, post-COVID-19 conditions among children 90 days after SARS-CoV-2 Infection, and symptoms and risk factors for long COVID in non-hospitalized adults.